[Event "New York op"]
[Site "New York"]
[Date "1998"]
[Round "9"]
[White "Khalifman, Alexander"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2660"]
[BlackElo "2405"]
[PlyCount "101"]
[EventDate "1998.03.16"]
[EventRounds "9"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 {Finkel,A} c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. O-O Bg7 6. Re1 Nh6 7.
c3 ({RR} 7. Nc3 f6 8. Qe2 Nf7 9. a3 Rb8 10. b4 cxb4 11. axb4 a6 12. Ra4 O-O 13.
d4 e5 14. Be3 Kh8 15. d5 f5 16. dxc6 dxc6 17. Bc5 Re8 18. Rd1 Qf6 19. Nd2) 7...
O-O 8. d4 cxd4 9. cxd4 d6 10. h3 Bd7 ({RR} 10... Rb8 11. Nc3 f6 12. Qc2 Nf7 13.
b3 Bd7 14. Bb2 Qc8 15. Rad1 Kh8 16. Qd2 Rb7 17. Ne2) ({RR} 10... f6 11. Nc3 Nf7
12. b3 ({RR} 12. Be3 Bd7 13. Qd2 Qc7 14. Rac1 Qb7 15. b3 Rad8 16. Qc2 f5 17. e5
c5 ({RR} 17... dxe5 18. dxe5 Nxe5 19. Nxe5 Bxe5 20. Bh6)) 12... e5 13. Bb2 Qb6
14. Rc1 Ba6 15. Rc2 Rfe8 16. d5 c5 17. Na4 Qd8 18. Bc3 f5) ({RR} 10... f6 11.
Nbd2 Nf7 12. Qc2 Bd7 13. b3 Rc8 14. Bb2 Qa5 15. Bc3 Qh5 16. e5 fxe5 17. dxe5
Qf5 18. Qxf5 Bxf5 19. Rac1 dxe5 20. Nxe5 Nxe5 21. Bxe5 Bh6 22. f4 Be6 23. Nf3
Bd5 24. Nh2 Bxf4 25. Bxf4 {Smith,B (2448)-Panjwani,R (2422) Arlington 2013 1/
2-1/2 (38)}) 11. Nc3 Qa5 ({RR} 11... f6) 12. Be3 $146 ({RR} 12. Bd2 Qh5 ({RR}
12... f6) ({RR} 12... Rab8 13. Qc1 Qh5 14. Ne2) 13. Ne2 f6 14. Qb3+ Nf7 ({RR}
14... Kh8) 15. e5 Rfb8 16. Qc4 d5 17. Qc3 Ng5 ({RR} 17... g5 18. Ng3 Qg6 19. e6
) 18. Nxg5 fxg5 19. g4 Qh4 ({RR} 19... Qh6 20. Kg2) 20. Kg2 Rf8 21. f3 Rf7 22.
Rh1 e6 23. Qc1 Rxf3 24. Be1 {1-0 (24) Sulskis,S (2485)-Yakovich,Y (2570) New
York 1998 CBM 064 [Finkel,A]}) 12... f6 13. a3 Rab8 14. Qd2 Nf7 15. b4 Qh5 16.
Ne2 g5 17. d5 Rb7 18. Rac1 Rc8 19. dxc6 Rxc6 20. Ng3 Qg6 21. Nd4 Rxc1 22. Rxc1
Ne5 23. Ndf5 Qf7 24. Qd5 Qxd5 25. Nxe7+ Kf7 26. Nxd5 Bf8 27. Nf5 Nc6 28. Nd4
Nxd4 29. Bxd4 Be7 30. Rc3 f5 31. exf5 Bxf5 32. Rf3 Kg6 33. g4 Bc8 34. Nxe7+
Rxe7 35. Rf6+ Kg7 36. Re6+ Kf7 37. Rxe7+ Kxe7 38. Bxa7 Bd7 39. f3 Be8 40. Kf2
Ke6 41. Be3 Kf6 42. Kg3 Bc6 43. Bb6 Ke7 44. f4 gxf4+ 45. Kxf4 Ba4 46. Kg5 Kf7
47. Kh6 Kg8 48. g5 Bc2 49. Bd4 Ba4 50. h4 Be8 51. h5 1-0

[Event "Guillermo Garcia Memorial-A 07th"]
[Site "Santa Clara"]
[Date "1999.05.25"]
[Round "2"]
[White "Nogueiras Santiago, Jesus"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2540"]
[BlackElo "2411"]
[PlyCount "45"]
[EventDate "1999.05.??"]
[EventRounds "13"]
[EventCountry "CUB"]
[EventCategory "8"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. c4 {Lautier} e6 2. g3 d5 3. Bg2 c6 4. Nf3 Bd6 5. O-O Nf6 6. d4 O-O 7. Nc3
Nbd7 8. Nd2 Bb4 ({RR} 8... Be7 9. e4 Nb6 10. e5 Ne8 11. Qe2 dxc4 12. Rd1 Nc7
13. Nxc4 Nxc4 14. Qxc4 Nd5 15. Ne4 Re8 16. h4 Qc7 17. Bg5 Bf8 18. Qe2 b6 19.
Rac1 Bb7 20. a3 a5 21. Qg4 Kh8 22. Rc2 h6 23. Bc1 {Nogueiras Santiago,J (2521)
-Pruess,D (2331) Montreal 2003 1-0 (56)}) 9. e4 ({RR} 9. Qb3 a5 ({RR} 9... Qe7
10. e4) ({RR} 9... c5 10. dxc5 ({RR} 10. cxd5 Bxc3 11. dxe6 ({RR} 11. bxc3 exd5
12. Ba3 Re8 13. e3 Qa5) ({RR} 11. Qxc3 Nxd5 12. Bxd5 cxd4 13. Qxd4 Nf6 14. e4
exd5 15. e5 Ne4 16. Nxe4 dxe4 17. Qxe4 Bh3 18. Re1 Qb6) 11... Bxd4 12. exd7
Nxd7 13. e3 Bf6 14. Ne4 Be7 15. Rd1 Qc7) 10... Qa5 11. cxd5 Nxc5 12. Qc2 Bxc3
13. Qxc3 Qxc3 14. bxc3 exd5 ({RR} 14... Nxd5 15. Ba3 b6 16. c4) 15. Ba3 b6 16.
c4) ({RR} 9... Qa5 10. e4 e5 11. a3 ({RR} 11. dxe5 Nxe4 12. Ndxe4 dxe4 13. Nxe4
Nxe5 14. a3 Be7 15. Bd2 Qa6 16. c5 Be6 17. Qc3 f6) 11... Bxc3 12. bxc3 dxe4 13.
Nxe4 Nxe4 14. Bxe4 Nf6 15. Bg2) 10. Rd1 ({RR} 10. e4 dxc4 11. Nxc4 b5 12. Ne3
Ba6 ({RR} 12... e5 13. a3 exd4 14. axb4 dxc3 15. Rd1) 13. Rd1 Be7 14. Qc2)
10... b5 ({RR} 10... Re8 11. e4) 11. cxd5 exd5 ({RR} 11... cxd5 {RR} 12. e4 ({
RR} 12. Nxb5 Ba6 13. a4 Qb6) 12... Ba6 ({RR} 12... Bxc3 13. bxc3 Rb8 14. e5 Ne8
15. Ba3 b4 16. cxb4 Nc7 17. Rdc1) ({RR} 12... dxe4 13. Ndxe4 Nxe4 14. Bxe4 ({RR
} 14. Nxe4 Bb7 15. a3 Bd5 16. Qd3 Be7 17. Qxb5 Rb8 18. Qe2) 14... Rb8 15. Bf4
Rb6 16. d5 ({RR} 16. a3 Be7 17. Nxb5 Nf6 18. Bd3 Bb7) 16... Nc5 17. Qc2 Nxe4
18. Nxe4 e5 ({RR} 18... exd5 19. Bc7) 19. Bxe5 Bf5 20. Bc7 Qc8 21. Rac1 Rh6 22.
f3) 13. exd5 ({RR} 13. e5 Ne8 14. a3 Be7 15. Nxb5 Rb8 16. a4 Qb6) 13... Bxc3
14. bxc3 Nxd5 ({RR} 14... a4 15. Qc2 Nxd5 16. Ba3 Re8 17. Ne4)) 12. e4 Nb6 ({RR
} 12... Qb6 13. exd5 Bxc3 14. bxc3 cxd5 ({RR} 14... a4 15. Qc2 Nxd5 16. c4 bxc4
17. Nxc4) 15. Ba3 Re8 16. Bxd5 Nxd5 17. Qxd5 Rb8 18. Re1) 13. e5 Ne8 14. Qc2 g6
({RR} 14... Bg4 15. Re1 ({RR} 15. f3 Bh5 16. Ne2 Nc4 17. Nxc4 Bg6 18. Qb3 dxc4
19. Qe3 Bc2 20. Rf1 Nc7) ({RR} 15. Nf3 f6 ({RR} 15... Qd7 16. Bf4 Nc7)) 15...
Qd7 16. Nf1 ({RR} 16. Nf3 Nc7 17. Nh4 Be7) 16... Nc7 17. Ne3 Bh3) 15. Nf3 Bf5
16. Qe2 Be7 ({RR} 16... Ng7 17. Bg5 Qd7 18. Rac1) ({RR} 16... Qd7 17. Bh6 Ng7
18. Rac1) 17. Bh6 Ng7 18. h3 Re8 19. Rac1 Rc8 20. g4 Be6 21. b3 ({RR} 21. Qd3
Nc4 22. Rc2 f5 23. exf6 Bxf6) 21... b4 ({RR} 21... f5 22. exf6 Bxf6 23. Qd2)
22. Nb1 Nd7 23. Nbd2 Qb6 {Lautier,J (2658)-Bologan,V (2676) Enghien les Bains
2001 CBM 083 [Lautier] 1-0 (39)}) ({RR} 9. Qb3 Bxc3 10. Qxc3 Re8 11. b3 a5 12.
a4 Qb6 13. e4 dxe4 14. Nxe4 Nxe4 15. Bxe4 Nf6 16. Bg2 Bd7 17. Bb2 Red8 18. Qe3
Be8 19. Qf3 Rd7 20. d5 cxd5 21. Bxf6 gxf6 22. Qg4+ Kf8 23. cxd5 e5 {Panesso
Rivera,H (2342)-Cardozo,C (1975) Ortega 2013 1-0}) 9... dxc4 $146 ({RR} 9... e5
10. dxe5 ({RR} 10. a3 Ba5) 10... Nxe5 11. cxd5 Bxc3 12. bxc3 cxd5 13. exd5 Nxd5
14. Ne4 ({RR} 14. c4 Nc3 15. Qc2 Qd3 16. Qxd3 Nxd3 17. Ba3 Re8) ({RR} 14. Qb3
Be6 ({RR} 14... Nb6) 15. Qxb7 ({RR} 15. c4 Nb6) 15... Qa5 16. Nb3 Qxc3) 14...
Bg4 15. Qb3 Nb6 16. f4 Nec4 17. f5 Re8 18. Bg5 Qc8 19. Qc2 Re5 20. f6 Rxg5 21.
Nxg5 Qc5+ 22. Qf2 Qxg5 23. fxg7 Qxg7 24. Bxb7 {Zhitnikov,S-Purgin,N (2320)
Smolensk 1992 0-1 (31)}) ({RR} 9... e5 10. dxe5 Nxe5 11. cxd5 Bxc3 12. bxc3
cxd5 13. exd5 Nxd5 14. Nb3 Nb6 ({RR} 14... Nxc3 15. Qe1 Qc7 16. Bb2) ({RR}
14... Be6 15. Nc5 ({RR} 15. Re1) 15... Nxc3 16. Qe1 Qd4 17. Nxe6 fxe6 18. Bb2
Rac8 19. Rc1 Rf3 20. Kh1 Rd3 21. f4) 15. Nd4) ({RR} 9... e5 10. dxe5 Nxe5 11.
cxd5 Bxc3 12. bxc3 cxd5 13. exd5 Nxd5 14. Nc4 Nxc4 15. Qxd5 Be6 16. Qxb7 Qa5
17. Qb4 Rab8 18. Qxa5 Nxa5 19. Be3 a6 20. Rfb1 Nc4 21. Bf4 Rbd8 22. Rd1 h6 23.
h4 a5 24. Rd4 {Filippov,V (2455)-Tunik,G (2530) Novgorod 1995 1-0 (54)}) 10.
Nxc4 c5 11. e5 Bxc3 12. bxc3 Nd5 13. Bd2 N7b6 14. Nd6 c4 15. Ne4 Bd7 16. Re1
Na4 17. Bg5 Qc7 18. Qg4 Kh8 19. Qh4 Bc6 20. Nf6 Nxf6 21. exf6 g6 22. d5 Bd7 23.
Qh6 1-0

[Event "Guillermo Garcia Memorial-A 07th"]
[Site "Santa Clara"]
[Date "1999.05.30"]
[Round "6"]
[White "De la Paz Perdomo, Frank"]
[Black "Gamboa, Nelson"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2495"]
[BlackElo "2411"]
[PlyCount "46"]
[EventDate "1999.05.??"]
[EventRounds "13"]
[EventCountry "CUB"]
[EventCategory "8"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 c6 6. Nf3 Bg4 7. O-O e6 8. h3
Bh5 9. Qd3 ({RR} 9. Qe2 Be7 10. Bf4 Nbd7 11. Rfe1 O-O 12. Qe3 Bb4 13. Nd2 Nb6
14. Bb3 Nbd5 15. Nxd5 Nxd5 16. Bxd5 cxd5 17. Nb3 Qb6 18. c3 Be7 19. Rab1 a5 20.
Qe5 Bg6 21. Qe2 a4 22. Nc1 Ra5 23. Qd2 Rc8 {Dukaczewski,P (2292)-Gelashvili,T
(2519) Istanbul 2000 0-1 (74)}) ({RR} 9. Re1 Be7 10. Qd3 Bg6 11. Qe2 Nd5 12.
Ne4 O-O 13. Bd2 Qc7 14. Ne5 Nd7 15. Nxg6 hxg6 16. Bb3 N7f6 17. c4 Nxe4 18. Qxe4
Nf6 19. Qf3 Rfd8 20. Bc3 b5 21. a3 a5 22. Qe2 b4 23. axb4 Bxb4 {Liu,M (2133)
-Liu,Y Zhongshan 2013 1-0 (90)}) 9... Nbd7 10. Re1 O-O-O $146 ({RR} 10... Bg6
11. Qe2 Be7 12. Bd2 Qd8 13. Bf4 O-O 14. Rad1 Bb4 15. Bg5 Qa5 16. Bb3 Bh5 17.
Bd2 Qf5 18. Ne4 Bxf3 19. Qxf3 Qxf3 20. gxf3 Bxd2 21. Rxd2 Nh5 22. Kh2 Nb6 23.
Nd6 Rab8 24. Re5 g6 25. c4 {Cai,J-Vojinovic,J Heraklio 2002 0-1 (72)}) ({RR}
10... Bd6 11. Bd2 Qc7 12. Ng5 Bg6 13. Qe2 O-O-O 14. a4 h6 15. Nge4 Nxe4 16.
Nxe4 Bxe4 17. Qxe4 Nf6 18. Qd3 Bf4 19. Bc3 h5 20. b4 h4 21. b5 c5 22. a5 g5 23.
d5 Qe7 24. b6 a6 25. Rab1 {Timoshin,A-Aydogdu,C Albena 2011 1-0 (35)}) 11. Bf4
Bxf3 12. Qxf3 Nb6 13. Bb3 Rxd4 14. Be5 Rd7 15. Bxf6 gxf6 16. Qxf6 Rg8 17. Re5
Nd5 18. Nxd5 cxd5 19. Rg5 Rg6 20. Rxg6 hxg6 21. Rd1 Bd6 22. c3 Qc7 23. Rd3 Be5
1/2-1/2

[Event "New York op"]
[Site "New York"]
[Date "2000.05.06"]
[Round "4"]
[White "Minasian, Artashes"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B82"]
[WhiteElo "2598"]
[BlackElo "2340"]
[PlyCount "47"]
[EventDate "2000.05.05"]
[EventRounds "9"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 a6 5. d4 cxd4 6. Nxd4 Qb6 7. Nb3 d6 8. Qf3
Nf6 9. Be3 Qc7 10. O-O-O ({RR} 10. g4 b5 11. g5 Nd7 12. O-O-O Bb7 13. Kb1 Rc8
14. Bd3 Nc5 15. Qh3 b4 16. Ne2 Na5 17. Bxc5 Nxb3 18. Bxb4 Nc5 19. Bxc5 Qxc5 20.
g6 Be7 21. Nd4 Bf6 22. gxf7+ Kxf7 23. Qxe6+ Kf8 24. Qxf6+ {1-0 (24) Rogers,I
(2605)-Arencibia Rodriguez,W (2550) Salamanca 1998}) 10... b5 11. g4 Bb7 12. g5
b4 $146 ({RR} 12... Nd7 13. Bd3 Nc5 14. Kb1 Nb4 15. f5 O-O-O 16. fxe6 fxe6 17.
Nxc5 dxc5 18. Be2 Bd6 19. a3 Nc6 20. Bxb5 Nd4 21. Bxd4 cxd4 22. Rxd4 axb5 23.
Nxb5 Qb6 24. Qb3 Be7 25. Qc3+ Bc6 26. Rc4 Kb7 27. Nd4 {Polgar,S (2415)
-Plaskett,J (2465) Hastings 1993 1/2-1/2 (43)}) 13. Nb5 axb5 14. gxf6 gxf6 15.
Bxb5 Rxa2 16. e5 fxe5 17. fxe5 d5 18. Rhg1 Be7 19. Kb1 Ra8 20. Rdf1 Rf8 21. Rg7
Qxe5 22. Rxf7 Rxf7 23. Qxf7+ Kd8 24. Bb6+ 1-0

[Event "New York op"]
[Site "New York"]
[Date "2000.05.08"]
[Round "6"]
[White "Shabalov, Alexander"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2592"]
[BlackElo "2340"]
[PlyCount "57"]
[EventDate "2000.05.05"]
[EventRounds "9"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8.
Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Ne7 12. Nxf6+ gxf6 13. Nc2 Bb7 14. Bd3
d5 15. exd5 Qxd5 16. Ne3 Qe6 17. a4 Rd8 18. Qc2 ({RR} 18. Qe2 Nd5 19. Nxd5 Qxd5
20. O-O-O Qxg2 21. Rhg1 Qf3 22. axb5 Qf4+ 23. Qe3 Qxe3+ 24. fxe3 axb5 25. Bxb5+
Ke7 26. Rxd8 Rxd8 27. Rd1 Rb8 28. Bd3 Bf3 29. Rd2 e4 30. Be2 Bxe2 31. Rxe2 f5
32. b4 Ke6 {Socko,B (2656)-Krasenkow,M (2631) Lublin 2009 1/2-1/2 (79)}) 18...
b4 ({RR} 18... e4 19. Be2 f5 20. g3 O-O 21. axb5 axb5 22. Bxb5 Ng6 23. Be2 f4
24. gxf4 Nxf4 25. Rd1 Qg6 26. c4 Rd3 27. c5 Rfd8 28. Bxd3 exd3 29. Qc4 Ng2+ 30.
Kd2 Nxe3 31. Qh4 Re8 32. fxe3 Bxh1 33. Rxh1 {Abrahamyan,T (2326)-Melekhina,A
(2304) Saint Louis 2011 1/2-1/2 (37)}) 19. Bc4 Qb6 20. a5 $146 ({RR} 20. Qb3
O-O 21. Qxb4 Qxb4 22. cxb4 f5 23. O-O f4 24. Ng4 Ng6 25. Rfe1 e4 26. Nf6+ Kg7
27. Nxe4 Rd4 28. Nc5 Rxc4 29. Nxb7 Rxb4 30. Nc5 Rxb2 31. Nxa6 Rc8 32. Reb1
Rxb1+ 33. Rxb1 Ne5 34. h3 Nd3 {Nepomniachtchi,I (2506)-Lintchevski,D (2414)
Kirishi 2006 1-0 (46)}) 20... Qc6 21. Qb3 O-O 22. Qxb4 Ng6 23. O-O Nf4 24. f3
Rd2 25. Rfd1 Qd7 26. Qb6 Rxd1+ 27. Rxd1 Qc6 28. Qxc6 Bxc6 29. Nf5 1-0

[Event "Abel Cardona op"]
[Site "Cali"]
[Date "2000.12.17"]
[Round "3"]
[White "Luther, Thomas"]
[Black "Gamboa, Nelson"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "2547"]
[BlackElo "2351"]
[PlyCount "99"]
[EventDate "2000.12.16"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be7 7. Bd3 a6 8. N5c3
Nf6 ({RR} 8... Bg5 9. Na3 Bxc1 10. Rxc1 Qg5 11. O-O Nge7 12. Nc2 O-O 13. Re1
Be6 14. Bf1 Rad8 15. b4 f5 16. b5 Nb8 17. exf5 Nxf5 18. Nd5 Nd7 19. f4 Qh4 20.
g3 Nxg3 21. hxg3 Qxg3+ 22. Bg2 Bg4 23. Qd2 {Leko,P (2745)-Fedorov,A (2575)
Wijk aan Zee 2001 1/2-1/2 (49)}) ({RR} 8... Bg5 9. Nd2 Nf6 10. O-O Bg4 11. Be2
Be6 12. Nb3 Bxc1 13. Rxc1 O-O 14. Qd2 Qb8 15. Rfd1 b5 16. Nd5 {1/2-1/2 (16)
Luther,T (2594)-Kalinitschew,S (2471) Boeblingen 2006}) 9. O-O O-O 10. b3 $146
({RR} 10. Na3 Be6 11. Nc2 Rc8 12. b3 Nd7 13. Ne3 Bg5 14. Be2 Nd4 15. Nc2 Nxe2+
16. Nxe2 Nc5 17. Ng3 Bf4 18. Qf3 Bxg3 19. hxg3 f5 20. exf5 Bxf5 21. Nb4 Kh8 22.
Qd1 b5 23. cxb5 axb5 24. Be3 Qd7 {Salagran Ferragut,G (1899)-Rodriguez Garcia,
V (2383) Sabadell 2012 1/2-1/2 (39)}) ({RR} 10. Na3 Bg4 11. f3 Be6 12. Be3 Nh5
13. Kh1 Bg5 14. Bg1 Qf6 15. Qe1 Qh6 16. Rd1 Ng3+ {0-1 (16) Rodriguez Lopez,R
(2325)-Miton,K (2350) Budapest 1997}) 10... Bg4 11. Be2 Be6 12. Bb2 Nd4 13. Bd3
Bg4 14. f3 Bd7 15. Ne2 Nxe2+ 16. Qxe2 b5 17. Nc3 b4 18. Nd1 a5 19. Ne3 Be6 20.
Rad1 Qb8 21. Bc2 Nd7 22. Kh1 Rd8 23. a4 bxa3 24. Bxa3 Nc5 25. Nd5 Bf8 26. Qe3
Ra7 27. Ra1 Bxd5 28. Bxc5 dxc5 29. cxd5 Be7 30. Rfb1 Rc8 31. Bd3 Bd8 32. Bc4 a4
33. d6 Qxd6 34. bxa4 Ba5 35. Rd1 Qb8 36. Rab1 Bb4 37. Qd3 Qc7 38. Ra1 h6 39. g3
Qe7 40. Kg2 Ba5 41. Qd6 Kf8 42. f4 Qxd6 43. Rxd6 Bc3 44. Ra3 Bb4 45. Ra2 Bc3
46. Rc2 Bd4 47. a5 Re8 48. a6 exf4 49. gxf4 Rxe4 50. Re2 1/2-1/2

[Event "Abel Cardona op"]
[Site "Cali"]
[Date "2000.12.18"]
[Round "4"]
[White "Gamboa, Nelson"]
[Black "Khenkin, Igor"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "2351"]
[BlackElo "2633"]
[PlyCount "42"]
[EventDate "2000.12.16"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c6 2. c4 d5 3. exd5 Nf6 4. d4 cxd5 5. Nc3 e6 6. Nf3 Bb4 7. Bd2 O-O 8. a3
Bxc3 9. bxc3 ({RR} 9. Bxc3 dxc4 10. Bxc4 b6 11. Ne5 Bb7 12. O-O Nc6 13. Re1 Nd5
14. Bxd5 Qxd5 15. Nxc6 Bxc6 16. Qg4 f5 17. Qh3 Rf6 18. Re5 Qd8 19. Qd3 Bd5 {1/
2-1/2 (19) Ivanov,I (2550)-Seirawan,Y (2565) New Brunswick 1984}) ({RR} 9. Bxc3
Ne4 10. Qc2 Nxc3 11. Qxc3 dxc4 12. Bxc4 b6 13. O-O Bb7 14. Rfd1 Na6 15. Qe3 Nc7
16. Rac1 Rc8 17. Bd3 Nd5 18. Qe4 g6 19. Rxc8 Bxc8 20. Ne5 Bb7 21. Qg4 Kg7 22.
Nf3 Qf6 23. Ne5 Rd8 {Arlt,R (2177)-Hess,M (2183) Baden 2013 1-0 (53)}) 9... b6
10. Bd3 Ba6 11. Qe2 $146 ({RR} 11. Ne5 Nfd7 12. Qh5 g6 13. Qh6 Nxe5 14. dxe5
Qc7 15. f4 Bxc4 16. Bxc4 Qxc4 17. Rf1 f6 18. f5 fxe5 19. f6 Rf7 20. O-O-O Nd7
21. Rf3 e4 {0-1 (21) Antosano,A-Gil Capape,J (2380) Spain 1991}) ({RR} 11. Ne5
dxc4 12. Bxc4 Bxc4 13. Nxc4 Nc6 14. O-O Rc8 15. Qe2 Qc7 16. Rac1 Nd5 17. f4 b5
18. Ne5 a6 19. Rf3 f5 20. Rh3 Nf6 21. Re1 Nxe5 22. fxe5 Ne4 23. Rd1 g6 24. g4
Qc4 25. Qe3 Nxd2 {Leodiadis,K (1948)-Karagiannis,A (2349) Nikaia 2007 0-1})
11... Nc6 12. Bg5 h6 13. h4 Bxc4 14. Bxc4 dxc4 15. Ne5 Nxe5 16. dxe5 hxg5 17.
hxg5 Nh7 18. f4 Qd3 19. Rh3 Qf5 20. Rh4 Rfd8 21. Kf2 Nf8 0-1

[Event "Foxwoods op 03rd"]
[Site "Connecticut"]
[Date "2001.04.14"]
[Round "5"]
[White "Gamboa, Nelson"]
[Black "Novikov, Igor A"]
[Result "0-1"]
[ECO "B85"]
[WhiteElo "2360"]
[BlackElo "2596"]
[PlyCount "116"]
[EventDate "2001.04.12"]
[EventRounds "7"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Be7 8. f4
O-O 9. Kh1 Qc7 10. Be3 b5 11. Bd3 ({RR} 11. Bf3 Bb7 12. e5 dxe5 13. Bxb7 Qxb7
14. fxe5 Nfd7 15. Qg4 Nxe5 16. Qf4 Ng6 17. Qg3 Nd7 18. Rad1 Nf6 19. a3 Rad8 20.
h3 Bd6 21. Qf3 Qxf3 22. Nxf3 Bc7 23. Nd4 Ne5 24. Bf4 Rd7 25. Nf3 Nxf3 {Lacasa
Diaz,J (2413)-Kosteniuk,A (2451) Dos Hermanas 2004 1/2-1/2 (103)}) ({RR} 11.
Bf3 Bb7 12. e5 Ne8 13. Bxb7 Qxb7 14. Qf3 Qxf3 15. Nxf3 dxe5 16. fxe5 Nc6 17.
Ne4 Nc7 18. Rfd1 Nd5 19. Bf2 Rfd8 20. Nc5 a5 21. c3 Rac8 22. Ne4 h6 23. Rd2 Nf4
24. Rad1 Rxd2 25. Rxd2 Rd8 {Meglic,J (1584)-Mirza,D (1678) Mureck 2013 0-1 (60)
}) 11... Bb7 12. a3 Nbd7 13. Nb3 $146 ({RR} 13. Qf3 Rac8 14. Qh3 Rfe8 15. Nf3
e5 16. Rae1 exf4 17. Bxf4 Ne5 18. Nxe5 dxe5 19. Bg5 Qd7 20. Rf5 Rxc3 21. bxc3
Nxe4 22. Bxe7 Nf2+ 23. Rxf2 Qxh3 24. Rxe5 Qd7 25. Rfe2 Bd5 26. Kg1 Be6 27. Bc5
Rc8 {Pinkas,K (2355)-Pedzich,D (2390) Czestochowa 1993 0-1 (111)}) 13... Rfe8
14. Qe2 Bf8 15. Rae1 Rac8 16. Bg1 e5 17. Qf3 exf4 18. Qxf4 Ne5 19. Nd4 d5 20.
exd5 Nxd5 21. Nxd5 Bxd5 22. Be4 Bc4 23. Rf2 Ng6 24. Qd2 Rcd8 25. c3 Ne5 26. h3
g6 27. Qf4 Bd6 28. Qc1 Nd3 29. Bxd3 Bxd3 30. Rf3 Be4 31. Rff1 Bg3 32. Bf2 Bxf2
33. Rxf2 Qg3 34. Ref1 Qxh3+ 35. Kg1 Qg3 36. Qf4 Qxf4 37. Rxf4 f5 38. R4f2 h5
39. Kh2 Kg7 40. Kg3 Kf6 41. Kh2 Re5 42. Ne2 h4 43. Nd4 g5 44. Re1 g4 45. Kg1
Rde8 46. Rd2 Bd5 47. Rxe5 Rxe5 48. Rd1 Kg5 49. b3 f4 50. a4 bxa4 51. bxa4 Bc4
52. Rb1 Re3 53. Rc1 h3 54. gxh3 Rxh3 55. Re1 Rxc3 56. Re5+ Kh4 57. Kf2 g3+ 58.
Kg2 Kg4 0-1

[Event "American Continental 1st"]
[Site "Cali"]
[Date "2001.08.11"]
[Round "2"]
[White "Morovic Fernandez, Ivan"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2565"]
[BlackElo "2354"]
[PlyCount "40"]
[EventDate "2001.08.09"]
[EventRounds "11"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. Bxc6+ bxc6 5. O-O e5 6. c3 Bg4 7. h3 ({RR} 7.
Re1 Nf6 8. d4 cxd4 9. cxd4 Nd7 10. Be3 Be7 11. Nbd2 exd4 12. Bxd4 O-O 13. Qc2
Rc8 14. Qc3 Nf6 15. h3 c5 16. hxg4 cxd4 17. Qxd4 Nxg4 18. Nc4 Qc7 19. Rac1 Rfd8
20. Qd2 Qb7 21. Qd5 Qa6 {Ye,J (2681)-Ni,H (2587) Tripoli 2004 1/2-1/2}) 7...
Bh5 ({RR} 7... h5 8. d4 cxd4 9. cxd4 Bxf3 10. Qxf3 exd4 11. e5 d5 12. Nd2 Be7
13. Nb3 c5 14. Bd2 Rc8 15. Rac1 g5 16. Rfe1 Qd7 17. Qe2 Kf8 18. Qa6 Rh6 19. Qa5
Rhc6 20. Qb5 Qc7 21. Qe2 d3 22. Qxh5 {Yee,S (2243)-Goundar,S (1942) Manila
2013 1-0 (44)}) 8. Re1 f6 $146 ({RR} 8... Nf6 9. d4 Nd7 10. Nbd2 Qc7 11. Qc2
Be7 12. dxe5 dxe5 13. Nh2 f6 14. Nhf1 Bf7 15. Ne3 g6 16. Ndc4 O-O 17. Qe2 Nb6
18. b3 Rfd8 19. Bd2 Rd7 20. Red1 Rad8 21. Nb2 Qd6 22. Be1 Qe6 23. Rxd7 {
Kosikov,A (2395)-Ivanov,I (2415) Daugavpils 1978 1-0 (68)}) ({RR} 8... Be7 9.
d4 cxd4 10. cxd4 f6 11. Be3 g5 12. dxe5 fxe5 13. Qc1 Qd7 14. Nxg5 Nf6 15. Nd2
O-O 16. Qc2 Kh8 17. Rac1 Rac8 18. f4 exf4 19. Bxf4 Bg6 20. Qc3 h6 21. Ngf3 Kh7
22. Qe3 Bd8 23. Nc4 {Genova,L (2260)-Raeva,E (2286) Vratsa 2010 1/2-1/2 (49)})
9. d4 cxd4 10. cxd4 exd4 11. g4 Bf7 12. Nxd4 Qd7 13. Bf4 h5 14. Nc3 hxg4 15.
hxg4 Nh6 16. f3 Be7 17. b4 Rf8 18. Rc1 Rd8 19. b5 cxb5 20. Ndxb5 Rc8 1-0

[Event "American Continental 1st"]
[Site "Cali"]
[Date "2001.08.15"]
[Round "6"]
[White "Gamboa, Nelson"]
[Black "Arencibia Rodriguez, Walter"]
[Result "0-1"]
[ECO "E97"]
[WhiteElo "2354"]
[BlackElo "2548"]
[PlyCount "110"]
[EventDate "2001.08.09"]
[EventRounds "11"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. Be3
Ng4 9. Bg5 f6 10. Bh4 Nh6 11. dxe5 dxe5 12. Qxd8 ({RR} 12. Qd5+ Kh8 13. h3 Qe7
14. Rad1 g5 15. Bg3 a6 16. Qd2 Be6 17. Nd5 Qf7 18. b4 Rad8 19. Qb2 g4 20. hxg4
Bxg4 21. b5 Bxf3 22. bxc6 Bxe2 23. Qxe2 bxc6 24. Nb4 c5 25. Nxa6 Rd4 26. Nxc5
Qxc4 {Lutz,B (2348)-Wirz,H (2161) Basel 2013 0-1 (84)}) 12... Nxd8 13. Nd2 $146
({RR} 13. Nd5 Ne6 14. c5 c6 15. Ne7+ Kf7 16. Nxc8 Raxc8 17. Bc4 Ke7 18. b4 Nf7
19. Rfd1 Rfd8 20. Kf1 Bh6 21. Bg3 Nfg5 22. Nxg5 Bxg5 23. Bxe6 Kxe6 {1/2-1/2
(23) Fish,G (2440)-Tosic,M (2465) Alushta 1993}) ({RR} 13. c5 c6 14. Rfd1 Nhf7
15. Nd2 Ne6 16. Nb3 Nd4 17. f3 f5 18. Bd3 Be6 19. exf5 Bxb3 20. axb3 gxf5 21.
Bc4 b5 22. cxb6 axb6 23. Ne2 Rxa1 24. Rxa1 Nxe2+ 25. Bxe2 e4 26. Bf2 b5 27. Rc1
Ne5 {Prohaszka,P (2536)-Nyzhnyk,I (2535) Groningen 2010 0-1 (58)}) ({RR} 13.
Rfd1 c6 14. Ne1 Ne6 15. Nc2 Nd4 16. Ne3 Be6 17. c5 Nxe2+ 18. Nxe2 Rfd8 19. b3
Nf7 20. f3 h5 21. Be1 Bf8 22. Rxd8 Rxd8 23. b4 Bh6 24. Nf1 Bc4 25. Kf2 Rd3 26.
Nc3 Ng5 27. Rb1 Ne6 {Mandekic,I (2230)-Loncar,R (2455) Zagreb 1993 1/2-1/2 (47)
}) 13... Ne6 14. Rfd1 c6 15. Nb3 Nf7 16. f3 Re8 17. a4 a5 18. Bf2 b6 19. Bxb6
Rb8 20. c5 Nxc5 21. Bxc5 Rxb3 22. Bc4 Rxb2 23. Ba3 Rc2 24. Rd3 Bh6 25. Rb1 Kg7
26. Rb8 Bc1 27. Bb3 Rd2 28. Rxd2 Bxd2 29. Nd1 Rd8 30. Be7 Rh8 31. Kf2 f5 32.
exf5 gxf5 33. Ra8 Be6 34. Rxh8 Bxb3 35. Rc8 Bxd1 36. Bf8+ Kg6 37. Rxc6+ Kh5 38.
Rf6 Bb3 39. g3 Bg5 40. Ra6 Bd8 41. h3 Bxa4 42. g4+ fxg4 43. hxg4+ Kh4 44. Ra8
Kh3 45. Bc5 Bb3 46. Rc8 a4 47. Bb4 Bb6+ 48. Ke2 Kg2 49. Ba3 Ng5 50. Rc6 Bd4 51.
Bc1 Nxf3 52. Rc7 e4 53. g5 Ng1+ 54. Kd2 Be5 55. Rxh7 Bf4+ 0-1

[Event "American Continental 1st"]
[Site "Cali"]
[Date "2001.08.17"]
[Round "8"]
[White "Gamboa, Nelson"]
[Black "Nogueiras Santiago, Jesus"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2354"]
[BlackElo "2525"]
[PlyCount "78"]
[EventDate "2001.08.09"]
[EventRounds "11"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 {Erenburg} g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 ({RR} 5. a4) ({RR} 5.
f4) 5... Nd7 ({RR} 5... b5) 6. Nf3 ({RR} 6. f3) ({RR} 6. h4) ({RR} 6. O-O-O) ({
RR} 6. a4) ({RR} 6. h3) 6... b5 7. Bd3 ({RR} 7. a4) 7... Bb7 8. a3 ({RR} 8. O-O
c5 9. dxc5 ({RR} 9. Rad1 cxd4 10. Bxd4 Ngf6 11. a4 e5 12. Be3 b4 13. Ne2 a5 14.
Ng3 O-O 15. Bb5 d5 16. exd5 Nxd5 17. Bh6 ({RR} 17. Qxd5 Bxd5 18. Rxd5) 17...
Rc8) ({RR} 9. Rfe1 cxd4 10. Bxd4 Ngf6 11. a3 O-O 12. Rad1 Qc7 13. Qg5 h6 14.
Qh4 g5 15. Qg3 e5 16. Be3 Nh5 17. Qh3 Ndf6) ({RR} 9. d5 Ngf6 10. a3 O-O 11. Bh6
e5 12. dxe6 fxe6 13. Bxg7 Kxg7) ({RR} 9. a4 b4 10. Ne2 Qc7 11. Ng3 Ngf6 12. Bh6
Bxh6 13. Qxh6 c4 14. Be2 Bxe4 15. Nxe4 Nxe4 16. Qg7 Rf8 17. Qxh7 d5) 9... Nxc5
({RR} 9... dxc5 10. Rad1 b4 ({RR} 10... Ngf6 11. e5 Ng4 12. e6 fxe6 13. Ng5) ({
RR} 10... c4 11. Be2) 11. Na4 Qa5 12. b3 Ngf6 13. a3) 10. b4 Nd7 ({RR} 10...
Nxd3 11. cxd3 Nf6 12. Bh6 ({RR} 12. a4) 12... O-O 13. Bxg7 Kxg7 14. a4) 11. a4
bxa4 ({RR} 11... Rc8 12. Ra3 ({RR} 12. Bd4) 12... bxa4 13. Nxa4) 12. Rxa4 Ngf6
13. Bh6 O-O 14. Bxg7 Kxg7 15. Ra5 ({RR} 15. Rfa1 Qb6) 15... Nb6 16. Re1 e5 ({RR
} 16... Qc7 17. e5 dxe5 18. Nxe5 Rac8 19. Ne2) 17. Na4 Nxe4 ({RR} 17... Nxa4
18. Rxa4 Qc7) 18. Bxe4 Nc4 19. Bxb7 Nxd2 20. Bxa8 Qxa8 21. Nxd2 Rb8 22. Rb1 Rb5
{Meister,J (2488)-Inarkiev,E (2606) Moscow 2004 CBM 100 [Erenburg] 1-0 (42)})
8... c5 ({RR} 8... h6 9. O-O-O e6 10. Rde1 Ne7 11. d5 e5 12. h4 f5 13. Qe2 Nf6
14. Bxb5+ Kf8 15. Bc4 fxe4 16. Nd2 Nexd5 17. Nxd5 Nxd5 18. Bxd5 Bxd5 19. Qg4
Qf6 20. Nxe4 Qf5 21. Qxf5+ gxf5 22. Nc3 Bxg2 23. Rhg1 {Alevizos,A-Schlenter,R
(1929) Rhodes 2013 0-1 (61)}) 9. Rd1 $146 ({RR} 9. O-O cxd4 10. Nxd4 Ngf6 11.
Bh6 O-O 12. Bxg7 Kxg7 13. Rfe1 Rc8 14. Bf1 Qb6 15. Rad1 Rfe8 16. Nb3 Ne5 17.
Nd5 Bxd5 18. exd5 Nc4 19. Bxc4 bxc4 20. Qa5 Qxa5 21. Nxa5 Rc5 22. Nc6 e6 23.
Kf1 a5 {Ross,P (2110)-Burnett,R (2415) Parsipanny 2002 0-1 (32)}) ({RR} 9. O-O
cxd4 10. Bxd4 Ngf6 11. a4 e5 12. Be3 b4 13. Nd1 a5 14. Bh6 O-O 15. Bxg7 Kxg7
16. Qe2 d5 17. Nd2 dxe4 18. Nxe4 Nd5 19. g3 Qe7 20. c4 Nc7 21. Ne3 f5 22. Nd2
Ne6 23. Nd5 Qd6 {Fakhiridou,E (2277)-Gelashvili,T (2605) Chalkida 2009 0-1 (47)
}) 9... cxd4 10. Nxd4 Ngf6 11. Bh6 Bxh6 12. Qxh6 Qb6 13. Qe3 e5 14. Nb3 Qxe3+
15. fxe3 Nc5 16. Nxc5 dxc5 17. O-O Ke7 18. Rf3 Rad8 19. Rdf1 Rd6 20. g4 h6 21.
b3 Rf8 22. h3 b4 23. Nb1 Nxe4 24. Bxe4 Bxe4 25. R3f2 f6 26. Nd2 Bxc2 27. Rc1
Bd3 28. Rxc5 bxa3 29. Ra5 Rc8 30. Rxa3 Bb5 31. Ra1 Rcc6 32. h4 Rd3 33. Re1 Rc2
34. Ne4 Rxf2 35. Kxf2 Rxb3 36. Rc1 Rb4 37. Ng3 Rxg4 38. h5 gxh5 39. e4 Ke6 0-1

[Event "Cartagena Champions Cup"]
[Site "Cartagena"]
[Date "2001.10.02"]
[Round "6"]
[White "Garcia, Gildardo"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2490"]
[BlackElo "2354"]
[PlyCount "93"]
[EventDate "2001.09.29"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Re1 O-O 7. e5 Nd5 8. d4 (
{RR} 8. Bc4 Nb6 9. Bb3 d6 10. exd6 Qxd6 11. Bc2 Nd5 12. Na3 e5 13. Nc4 Qc7 14.
Be4 Nde7 15. Qb3 Rb8 16. a4 b6 17. d3 Na5 18. Nxa5 bxa5 19. Qa2 Be6 20. c4 h6
21. Bd5 Bxd5 22. cxd5 Rfd8 {Kantans,T (2320)-Simacek,P (2467) Teplice 2013 1/
2-1/2 (84)}) 8... cxd4 ({RR} 8... Nc7 9. Bxc6 dxc6 10. dxc5 Qxd1 11. Rxd1 Bg4
12. Bg5 Bxf3 13. gxf3 Bxe5 14. Bxe7 Rfe8 15. Bd6 Bxd6 16. cxd6 Red8 17. Na3 Ne8
18. Nc4 Rd7 19. a4 Rad8 20. Rd4 Ng7 21. a5 Nf5 22. Rd2 f6 23. Re1 {Glek,I
(2574)-Joachim,S (2443) Panormo 2001 1/2-1/2 (37)}) 9. cxd4 a6 10. Ba4 Nb6 $146
({RR} 10... d6 11. Nc3 Nxc3 12. bxc3 b5 13. Bc2 dxe5 14. Be4 Bb7 15. Nxe5 Bxe5
16. dxe5 Qxd1 17. Rxd1 Rfd8 18. Be3 Rxd1+ 19. Rxd1 Rd8 20. Rxd8+ Nxd8 21. Bc2
Nc6 22. f4 Kf8 23. Kf2 Ke8 24. g4 Bc8 25. Kg3 {Marjanovics,G (2125)
-Kosztolanczi,G (2130) Heviz 2012 1-0 (46)}) 11. d5 Nxa4 12. Qxa4 Qa5 13. Qe4
Nd8 14. Bd2 Qb6 15. Nc3 d6 16. Be3 Qxb2 17. Na4 Qb5 18. Nb6 Rb8 19. Rac1 Bf5
20. Qf4 dxe5 21. Nxe5 Ne6 22. Qg3 Ng5 23. Bxg5 Qxb6 24. Bxe7 Rfe8 25. Nc4 Qb5
26. Ne3 Bd7 27. Qd6 Qa4 28. h3 Rbc8 29. Rb1 Bc3 30. Red1 Bb5 31. Bf6 h5 32.
Bxc3 Rxc3 33. Qf6 Qa3 34. d6 Rd3 35. Rxd3 Qxd3 36. Rb3 Qd2 37. Nf5 Qc1+ 38. Kh2
Qf4+ 39. Rg3 Qe5 40. Ne7+ Rxe7 41. Qxe7 Qf4 42. h4 Qd4 43. Rf3 Qd5 44. Rf4 Bc6
45. f3 Qe6 46. Qxe6 fxe6 47. Rf6 1-0

[Event "Cartagena Champions Cup"]
[Site "Cartagena"]
[Date "2001.10.04"]
[Round "8"]
[White "Zapata, Alonso"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2530"]
[BlackElo "2354"]
[PlyCount "63"]
[EventDate "2001.09.29"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 {Horvath,Ta} c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7.
Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bb7 12. Nc2 ({RR} 12. Bd3 Nb8
13. Nc2 Nd7 14. a4 bxa4 15. Rxa4 Bg5 16. O-O O-O 17. Ra2 Nb6) 12... Ne7 13.
Nxf6+ gxf6 14. Bd3 d5 15. Qe2 ({RR} 15. exd5 Qxd5 16. Ne3 Qe6 17. Qh5 O-O-O 18.
Bc2 Kb8) 15... dxe4 16. Bxe4 Bxe4 17. Qxe4 Qd5 18. Qxd5 Nxd5 19. g3 ({RR} 19.
a4 Ke7 20. axb5 axb5 21. Kd2 Rhd8 22. Rxa8 Rxa8 23. Ra1 Rxa1 24. Nxa1 f5 {1/
2-1/2 (25) Shirov,A (2705)-Illescas Cordoba,M (2590) Las Palmas 1994 CBM 042
[Horvath,Ta]}) ({RR} 19. O-O-O O-O-O 20. Rd2 Rd7 {1/2-1/2 (20) Kovalev,A (2473)
-Iljin,T (2410) Alushta 2013}) 19... Ke7 20. O-O-O Rhe8 $146 ({RR} 20... Rhd8
21. Rhe1 Nb6 22. Nd4 Rac8 23. Re4 Nc4 24. Nf5+ Ke6 25. Ng7+ Ke7 26. Nf5+ Ke6
27. Rxd8 Rxd8 28. Nd4+ Kd7 29. Nb3 Ke7 30. Kc2 f5 31. Re2 Rd5 32. Nd2 Nd6 33.
b3 f6 34. Re1 Rc5 35. Ra1 {Landa,K (2615)-Llaneza Vega,M (2468) Vlissingen
2008 0-1 (71)}) 21. Rhe1 Rac8 22. f4 b4 23. fxe5 bxc3 24. b3 Kf8 25. e6 Ne7 26.
Nd4 Rc5 27. exf7 Kxf7 28. Kc2 Rd8 29. a3 Ra5 30. Nc6 Re8 31. Rxe7+ Kg6 32. Nxa5
1-0

[Event "Cali op 5th"]
[Site "Cali"]
[Date "2001.12.19"]
[Round "4"]
[White "Perez Garcia, Rodney Oscar"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2482"]
[BlackElo "2354"]
[PlyCount "61"]
[EventDate "2001.12.17"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Qc7 4. O-O Nf6 5. Re1 d6 ({RR} 5... e5 6. c3 a6 7.
Bxc6 dxc6 8. d4 cxd4 9. cxd4 exd4 10. e5 Nd5 11. Nxd4 Be6 12. Nxe6 fxe6 13. Nc3
Nxc3 14. bxc3 Bc5 15. Be3 Bxe3 16. Rxe3 Rd8 17. Qb3 Qe7 18. Rd1 Rxd1+ 19. Qxd1
O-O 20. g3 {Sokolov,A (2563)-Le Corre,B (2300) Haguenau 2013 1/2-1/2 (37)}) ({
RR} 5... a6 6. Bf1 d6 7. h3 g6 8. c3 Bg7 9. d3 O-O 10. Bf4 e5 11. Bg5 Nh5 12.
Nbd2 Be6 13. Nh2 Rfe8 14. Nc4 b5 15. Nd2 Nf4 16. Bxf4 exf4 17. a4 b4 18. Rc1
Qa5 19. Nb1 Rab8 20. Nf3 {Dydek,M (1935)-Dybowski,J (2274) London 2013 0-1 (44)
}) 6. c3 Bd7 $146 ({RR} 6... a6 7. Bxc6+ Qxc6 8. e5 dxe5 9. Nxe5 Qd6 10. Nc4
Qc6 11. d4 e6 12. Be3 Be7 13. Nbd2 O-O 14. Qc2 Nd5 15. Ne5 Nxe3 16. Rxe3 Qc7
17. dxc5 Bxc5 18. Rh3 f5 19. Re1 b5 20. Ndf3 Bd6 21. Qe2 {Hauck,K-Braun,V
Germany 2004 1-0 (32)}) ({RR} 6... Bg4 7. d4 Bxf3 8. Qxf3 a6 9. Bxc6+ Qxc6 10.
d5 Qc7 11. Bg5 Nd7 12. Nd2 Ne5 13. Qh3 c4 14. Nf3 Nd3 15. Re2 Qd7 16. Qh4 h6
17. e5 Nxe5 18. Nxe5 dxe5 19. Rd1 f6 20. Be3 b5 21. Qh5+ {Winkler,S (1846)
-Thuerauf,P (1871) Erlangen 2003 1-0 (32)}) 7. d4 cxd4 8. cxd4 g6 9. Nc3 Bg7
10. e5 dxe5 11. dxe5 Ng4 12. Nd5 Qd8 13. Bg5 h6 14. Bh4 g5 15. Bg3 e6 16. Nc3
h5 17. h4 gxh4 18. Bxh4 Qc7 19. Ne4 Ncxe5 20. Nd6+ Kf8 21. Nxe5 Nxe5 22. Bg3
Bxb5 23. Nxb5 Qc5 24. a4 a6 25. Rc1 Qe7 26. Rc7 Rd8 27. Qe2 Qg5 28. Bxe5 axb5
29. Qxb5 Kg8 30. Qxb7 Qf5 31. Rc8 1-0

[Event "Medellin Maracaibo club"]
[Site "Medellin"]
[Date "2002.02.28"]
[Round "1"]
[White "Gamboa, Nelson"]
[Black "Zapata, Alonso"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2363"]
[BlackElo "2541"]
[PlyCount "80"]
[EventDate "2002.02.28"]
[EventRounds "5"]
[EventCountry "COL"]
[EventCategory "8"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nc3 a6 3. f4 b5 4. Nf3 Bb7 5. Qe2 ({RR} 5. d3 e6 6. Qe2 Be7 7. g3
d5 8. Bg2 Nf6 9. e5 Nfd7 10. f5 Nf8 11. fxe6 Nxe6 12. O-O Nc6 13. Bd2 O-O 14.
Bf4 Ncd4 15. Qf2 b4 16. Nxd4 Nxd4 17. Ne2 Nxc2 18. Rac1 b3 19. axb3 Nb4 {Landa,
K (2584)-Vachier Lagrave,M (2577) Paris 2006 1/2-1/2 (33)}) 5... Nc6 ({RR} 5...
e6 6. g4 Be7 7. d3 d6 8. Bg2 Nf6 9. g5 Nfd7 10. O-O Nc6 11. Be3 b4 12. Na4 a5
13. a3 e5 14. Qf2 exf4 15. Bxf4 O-O 16. Qg3 Qc7 17. Kh1 Nde5 18. Nxc5 Bc8 19.
Nxe5 Nxe5 20. axb4 {Meng,R (2333)-Vereggen,L (2069) Haarlem 2012 1-0 (52)}) 6.
d3 Nd4 $146 ({RR} 6... e6 7. g3 b4 8. Nd1 Nd4 9. Qf2 Qa5 10. Nxd4 cxd4 11. Qxd4
Rc8 12. Ne3 Nf6 13. Nc4 Qc7 14. Be3 d5 15. Nb6 Rd8 16. e5 Ng4 17. Bg1 Qxc2 18.
Be2 h5 19. Bd1 Qg2 20. Ba4+ Rd7 21. Nxd7 {Najer,E-Tzoumbas,A (2215) Bratislava
1993 1-0}) ({RR} 6... e6 7. g3 d6 8. Bg2 Be7 9. O-O b4 10. Na4 Nf6 11. b3 O-O
12. Bb2 Rb8 13. h3 Nd7 14. Rae1 e5 15. fxe5 dxe5 16. Bc1 Nd4 17. Nxd4 cxd4 18.
Qh5 Qc7 19. Rf2 Nf6 20. Qe2 Bc8 21. Ref1 {Sandu,M (2270)-Llaneza Vega,P (2277)
Novi Sad 2009 0-1 (73)}) 7. Nxd4 cxd4 8. Nd1 Rc8 9. Qf2 d5 10. Qxd4 dxe4 11.
Qxd8+ Rxd8 12. dxe4 Bxe4 13. Ne3 e6 14. a4 Rb8 15. axb5 axb5 16. Bd2 Bd6 17.
Ra5 Bc6 18. f5 Ne7 19. fxe6 fxe6 20. Be2 Rf8 21. c4 Bc7 22. Ra7 Bb6 23. Ra6
bxc4 24. Rf1 Rxf1+ 25. Bxf1 c3 26. Bxc3 Bxe3 27. Bxg7 Kf7 28. Be5 Rd8 29. Ra3
Bc5 30. Rh3 Be4 31. Bc3 Nd5 32. Rh4 Nxc3 33. bxc3 Bf5 34. Rc4 Be3 35. g4 Bc2
36. Rc7+ Kf6 37. h4 Bf4 38. g5+ Kg6 39. Re7 Bg3+ 40. Ke2 Bf5 0-1

[Event "Medellin Maracaibo club"]
[Site "Medellin"]
[Date "2002.03.01"]
[Round "2"]
[White "Garcia, Gildardo"]
[Black "Gamboa, Nelson"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2498"]
[BlackElo "2363"]
[PlyCount "104"]
[EventDate "2002.02.28"]
[EventRounds "5"]
[EventCountry "COL"]
[EventCategory "8"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. d4 cxd4 7. cxd4 Nxe4 8.
d5 Nd6 9. Na3 Nb8 ({RR} 9... a6 10. Qa4 Na7 11. Bd3 O-O 12. Re1 b5 13. Qh4 Bb7
14. Bh6 f6 15. Bxg7 Kxg7 16. Rad1 Nac8 17. Nc2 Nf7 18. Ne3 Ncd6 19. Nd4 Re8 20.
Qh3 Rc8 21. Bb1 Rc7 22. f4 Qb8 23. Rf1 Qa7 24. Kh1 {Morozevich,A (2749)
-McShane,L (2490) Birmingham 2001 1-0 (35)}) ({RR} 9... a6 10. Bd3 Nb4 11. Nc4
Nxc4 12. Bxc4 b5 13. Bb3 a5 14. a3 Na6 15. Bg5 d6 16. Re1 f6 17. Be3 Bg4 18.
Qd3 Bd7 19. Bd4 O-O 20. Qe3 a4 21. Ba2 Re8 22. Rac1 Qb8 23. Rc2 b4 24. Bc4 {
Barle,J (2368)-Nikcevic,N (2450) Kukes 2013 1-0 (39)}) 10. Re1 $146 ({RR} 10.
Bf4 Nxb5 11. Nxb5 d6 12. Re1 O-O 13. Rc1 Na6 14. Bg5 Qb6 15. a4 Bf6 16. Bxf6
exf6 17. Qd2 Nc5 18. Rc4 Kg7 19. Rh4 h5 20. Nc3 Bg4 21. Nd4 Nb3 22. Nxb3 Qxb3
23. Ne4 Rfe8 24. Re3 Qxa4 {Ristoja,T (1920)-Pyhala,A (2335) Helsinki 1978 0-1})
({RR} 10. Bf4 O-O 11. Bxd6 exd6 12. Qd2 b6 13. Rac1 Na6 14. Rfe1 Nc7 15. Bf1
Bb7 16. Nb5 Nxb5 17. Bxb5 a6 18. Bc4 Rc8 19. Bb3 Rc5 20. Rcd1 a5 21. a3 Qf6 22.
Rb1 Qf5 23. Red1 Re8 24. a4 h6 {Mueller,P-Mchedlishvili,M (2365) Chemnitz 1998
0-1 (44)}) 10... O-O 11. Qa4 Na6 12. Bg5 Re8 13. Nc4 Nxb5 14. d6 f6 15. Qxb5 e6
16. Be3 b6 17. Nfd2 Nb8 18. Nb3 Bb7 19. Rac1 Ba6 20. Qb4 Nc6 21. Qa4 Bb7 22.
Qb5 Rb8 23. f4 Kh8 24. Bf2 Bh6 25. Be3 Ba8 26. Ncd2 e5 27. Qf1 Bf8 28. Ne4 Bg7
29. Nbd2 Re6 30. f5 gxf5 31. Qxf5 Qe8 32. Nf3 Nb4 33. Rc7 Nd5 34. Rxa7 Nxe3 35.
Rxe3 Rc8 36. h3 Bh6 37. Re2 Bc6 38. Nfd2 Qg6 39. g4 Bxd2 40. Nxd2 Qxf5 41. gxf5
Rg8+ 42. Kf2 Rxd6 43. Ne4 Rd4 44. Nxf6 Rf8 45. Ng4 Rxf5+ 46. Ke1 Bf3 47. Ne3
Rf8 48. Rd2 Re4 49. Rd3 d5 50. Kd2 d4 51. Nc4 Re2+ 52. Kc1 Be4 0-1

[Event "Medellin Maracaibo club"]
[Site "Medellin"]
[Date "2002.03.04"]
[Round "4"]
[White "Gamboa, Nelson"]
[Black "Alzate, Dario"]
[Result "1/2-1/2"]
[ECO "B84"]
[WhiteElo "2363"]
[BlackElo "2432"]
[PlyCount "118"]
[EventDate "2002.02.28"]
[EventRounds "5"]
[EventCountry "COL"]
[EventCategory "8"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Qc7 8. f4
Be7 9. Kh1 O-O 10. a4 Nc6 11. Bf3 Rd8 12. Nxc6 ({RR} 12. Nb3 b6 13. Qe2 Bb7 14.
g4 d5 15. e5 Nd7 16. Be3 Ndxe5 17. fxe5 d4 18. Nd5 Rxd5 19. Bxd5 dxe3 20. Be4
Nxe5 21. Qg2 Bxe4 22. Qxe4 Rd8 23. Rad1 g6 24. Rxd8+ Bxd8 25. Nd4 Nc4 26. Rd1
Nxb2 {Arnason,J (2555)-Tal,M (2625) Jurmala 1987 0-1 (40)}) ({RR} 12. Nb3 b6
13. Qe2 Bb7 14. e5 dxe5 15. fxe5 Nd7 16. Bf4 Rab8 17. Rae1 Nc5 18. Nxc5 bxc5
19. Be4 Nd4 20. Qg4 Bc8 21. Qh3 g6 22. Rf2 Rb4 23. Kg1 Nf5 24. g4 Bh4 25. Bg3
Bxg3 26. hxg3 Qxe5 {Hansen,S (2555)-Aagaard,J (2447) Aalborg 2006 1/2-1/2 (47)}
) 12... bxc6 13. Qe1 a5 $146 ({RR} 13... Rb8 14. a5 c5 15. Na4 d5 16. e5 Ne4
17. Nb6 Bb7 18. c4 f5 19. exf6 Bxf6 20. Ra3 Re8 21. Rd3 Nd6 22. Re3 dxc4 23.
Bxb7 Qxb7 24. Qe2 Bd4 25. Rxe6 Qf7 26. f5 Nxf5 27. Rxe8+ Rxe8 28. Qxc4 {Geller,
E (2525)-Suba,M (2545) Moscow 1986 0-1 (45)}) ({RR} 13... d5 14. e5 Nd7 15. b3
a5 16. Qg3 Ba6 17. Re1 Nf8 18. Ba3 Bxa3 19. Rxa3 Ng6 20. Raa1 Rab8 21. Bh5 c5
22. Bxg6 fxg6 23. Nb1 Rf8 24. Nd2 Qf7 25. Qg4 Qf5 26. Qxf5 Rxf5 27. g3 g5 28.
fxg5 {Yemelin,V (2345)-Shipov,S (2500) St Petersburg 1993 0-1 (57)}) 14. Bd2
Bb7 15. Qg3 d5 16. e5 Ne4 17. Bxe4 dxe4 18. Nxe4 c5 19. Nd6 Bxd6 20. exd6 Qxd6
21. Bc3 Qf8 22. f5 exf5 23. Rxf5 Rd5 24. Rxd5 Bxd5 25. Re1 f6 26. h3 Qf7 27.
Qd6 Qb7 28. Re7 Qc6 29. Qg3 Bf7 30. Qc7 Qxc7 31. Rxc7 Bg6 32. Rxc5 Bxc2 33.
Bxf6 gxf6 34. Rxc2 Rb8 35. Rc5 Rxb2 36. Rxa5 Kg7 37. Ra8 Ra2 38. Kh2 h5 39. Kg3
h4+ 40. Kf3 Ra3+ 41. Kg4 Rg3+ 42. Kxh4 Rxg2 43. a5 Rg5 44. Ra7+ Kh6 45. a6 Ra5
46. Kg4 Kg6 47. Ra8 Ra4+ 48. Kg3 Ra3+ 49. Kf4 Ra4+ 50. Ke3 Kg7 51. Kd2 Ra3 52.
h4 f5 53. Ke2 Kh7 54. h5 Kg7 55. a7 f4 56. Kf2 Kh7 57. h6 f3 58. Kg3 f2+ 59.
Kxf2 Ra2+ 1/2-1/2

[Event "Medellin Maracaibo club"]
[Site "Medellin"]
[Date "2002.03.05"]
[Round "5"]
[White "Cuartas, Jaime Alexander"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2435"]
[BlackElo "2363"]
[PlyCount "89"]
[EventDate "2002.02.28"]
[EventRounds "5"]
[EventCountry "COL"]
[EventCategory "8"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nf6 5. Be2 O-O 6. O-O c6 7. a4 Bg4 8. a5 ({
RR} 8. Bg5 Nbd7 9. Qd2 Qa5 10. b4 Qc7 11. Ra3 e5 12. Rd1 Rfe8 13. dxe5 dxe5 14.
Ne1 Be6 15. Qe3 Bf8 16. Na2 a5 17. c3 Ng4 18. Qg3 Ngf6 19. Qh4 Bg7 20. Nc1 h5
21. Ncd3 Nh7 22. Nf3 Bg4 {Handoko,E (2420)-Seirawan,Y (2605) Indonesia 1983
0-1 (41)}) ({RR} 8. Bg5 Nbd7 9. d5 c5 10. Qd2 Ne8 11. h3 Bxf3 12. Bxf3 a6 13.
Rfe1 Ne5 14. Be2 f6 15. Be3 Nc7 16. f4 Nf7 17. h4 b6 18. h5 Qd7 19. Bf3 b5 20.
Qf2 g5 21. Qg3 h6 22. Bg4 Qe8 {Huynh,H-Vincentius,G Chiangmai 2013 1/2-1/2 (47)
}) 8... Nbd7 9. Be3 d5 $146 ({RR} 9... Qc7 10. Ng5 Bxe2 11. Qxe2 h6 12. Nf3 e5
13. dxe5 dxe5 14. Qc4 Ng4 15. Bc1 Rfd8 16. a6 bxa6 17. Nd5 Qd6 18. Qxc6 Qxc6
19. Ne7+ Kh7 20. Nxc6 Rdc8 21. Rxa6 Nb6 22. Nb4 Rc4 23. c3 Rxe4 24. b3 {Moisan
Plante,M (2035)-Schleifer,M (2325) Quebec 1994 1/2-1/2 (34)}) ({RR} 9... Qc7
10. Nd2 Bxe2 11. Qxe2 d5 12. e5 Ne8 13. f4 e6 14. b4 f6 15. Nb3 f5 16. Na4 a6
17. c4 Qc8 18. b5 dxc4 19. Qxc4 Nxe5 20. dxe5 axb5 21. Qb4 bxa4 22. Nc5 Rf7 23.
Rfb1 Bf8 24. Rxa4 {Hresc,V (2375)-Seidel Wuerzburg 1987 1/2-1/2 (55)}) 10. h3
Bxf3 11. Bxf3 dxe4 12. Nxe4 Nxe4 13. Bxe4 Qc7 14. c3 Rad8 15. Qb3 Kh8 16. Bf3
Nf6 17. Rfe1 Nd5 18. Bg5 h6 19. Bxd5 hxg5 20. Bxf7 e5 21. Bxg6 Rf6 22. Bd3 exd4
23. c4 Rdf8 24. Re2 g4 25. hxg4 Rh6 26. g3 Rf3 27. Kg2 Qf7 28. Qc2 Rd6 29. Rh1+
Kg8 30. c5 Rdf6 31. g5 R6f5 32. Bxf5 Rxf5 33. Qe4 Rxg5 34. Qe8+ Qxe8 35. Rxe8+
Kf7 36. Rb8 Rxc5 37. Rxb7+ Kg6 38. b4 Rc2 39. Rd1 Rc4 40. Rxa7 Rxb4 41. Rc1 Be5
42. Rxc6+ Kf5 43. Rc5 d3 44. f4 Kg4 45. Rg7+ 1-0

[Event "Cali op-A"]
[Site "Cali"]
[Date "2002.12.21"]
[Round "5"]
[White "Gamboa, Nelson"]
[Black "Cuartas, Jaime Alexander"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2363"]
[BlackElo "2435"]
[PlyCount "161"]
[EventDate "2002.11.19"]
[EventRounds "8"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 {Dolmatov} c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nf6 6. d3 e6 7. g3
Bb4 8. Bd2 d4 9. Nb1 Qb6 10. b3 Qc5 $146 ({RR} 10... Na6 11. Qd1 Qc5 12. Bg2
Bxd2+ 13. Qxd2 Nb4 14. O-O a5 15. a3 Na6 16. Qc1 O-O 17. Nd2 Nc7 18. f4 Nb5 19.
Rf2 Nc3 20. g4 Nd7 21. Nf1 f5 22. Ng3 g6 23. Qd2 Rf7 24. gxf5 exf5 25. Kh2 {
Stoliar,E-Kotov,A Leningrad 1956 1-0 (41)}) ({RR} 10... a5 11. a3 Bxd2+ 12.
Nxd2 Qc5 ({RR} 12... O-O 13. Bg2 a4 14. O-O) 13. Qd1 g5 14. Bg2 Rg8 15. O-O
Nbd7 16. Nc4 Ke7 ({RR} 16... b5 17. Nxa5) ({RR} 16... Ne5 17. b4 axb4 18. axb4)
17. Qe1 ({RR} 17. Qe2 Nb6 18. e5 Nfd5) 17... Nb6 18. f4 Nxc4 19. bxc4 gxf4 20.
Rxf4 ({RR} 20. gxf4 Qh5 ({RR} 20... Rg7 21. Qh4 Rag8 22. Rf2)) 20... Nd7 21.
Qf2 Raf8 ({RR} 21... Ne5 22. Rf6 Rg6 23. Rf1 Rag8) 22. Rb1 b6 23. Rf1 f6 24.
Rh4 Rg7 25. g4 {Morovic Fernandez,I (2590)-Granda Zuniga,J (2610) Yerevan 1996
EXT 1997 [Dolmatov] 1-0 (43)}) ({RR} 10... c5 11. Bg2 Nc6 12. O-O Bxd2 13. Nxd2
Qc7 14. Qe2 e5 15. Kh2 g5 16. a3 Qe7 17. Rfb1 Nd7 18. Bf3 Nf6 19. Bg2 h5 20. b4
cxb4 21. axb4 Nxb4 22. Nc4 Kf8 23. Nxe5 Qxe5 24. Rxb4 h4 25. Rxb7 {
Ambartsumova,K (2306)-Girya,O (2464) Loo 2013 0-1 (45)}) ({RR} 10... a5 11. a3
Be7 12. Bg2 a4 13. b4 Nbd7 14. O-O c5 15. Ra2 O-O 16. bxc5 Bxc5 17. Qe2 e5 18.
f4 Rfc8 19. h4 Rc6 20. Bh3 Qc7 21. fxe5 Nxe5 22. Bf4 Bd6 23. h5 Ra5 24. h6 Ng6
25. Qf3 {Fischer,R-Keres,P Bled/Zagreb/Belgrade 1959 0-1}) 11. Qd1 a5 12. Bg2
O-O 13. O-O Bxd2 14. Nxd2 a4 15. Re1 Nbd7 16. f4 axb3 17. cxb3 Ra6 18. a4 e5
19. Rc1 Qe7 20. Nf3 c5 21. Nh4 g6 22. f5 Nh5 23. Kh2 Qg5 24. Qg4 Qxg4 25. hxg4
Nhf6 26. Bh3 g5 27. Nf3 h6 28. Nd2 b5 29. axb5 Ra2 30. Red1 Rb8 31. Ra1 Rba8
32. Rxa2 Rxa2 33. Kg1 Ra5 34. Kf2 Ne8 35. Rc1 Kf8 36. Bf1 Ke7 37. Be2 Nd6 38.
Rh1 Ra2 39. Ke1 Ra1+ 40. Bd1 Nxb5 41. Nc4 Ra6 42. Kd2 Kf8 43. Bc2 Ke7 44. Rh2
Kf8 45. Rh1 Kg7 46. Rc1 Nc3 47. Bd1 f6 48. Nb2 Ra2 49. Rc2 Nb1+ 50. Ke1 Na3 51.
Rd2 Nb1 52. Rc2 Ra3 53. Nc4 Ra7 54. Nb2 Ra3 55. Nc4 Ra8 56. Nb2 Nc3 57. Kd2 Ra3
58. Nc4 Rxb3 59. Ra2 Nxa2 60. Bxb3 Nc3 61. Nd6 Kf8 62. Be6 Ke7 63. Nb7 Na4 64.
Kc2 c4 65. Bxc4 Ndc5 66. Nxc5 Nxc5 67. Bb5 Kd6 68. Kb2 Nb7 69. Ka3 Kc5 70. Ka4
Nd6 71. Bd7 Nb7 72. Bc8 Nd8 73. Bd7 Nf7 74. Be8 Nd6 75. Bd7 Nb7 76. Bc8 Nd8 77.
Bd7 Kd6 78. Bc8 Kc5 79. Bd7 Nf7 80. Be8 Nd6 81. Bd7 1/2-1/2

[Event "Cali op-A"]
[Site "Cali"]
[Date "2002.12.21"]
[Round "6"]
[White "Gamboa, Nelson"]
[Black "Mosquera, Miguel"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2363"]
[BlackElo "2384"]
[PlyCount "18"]
[EventDate "2002.11.19"]
[EventRounds "8"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8.
exd5 cxd5 9. O-O O-O 1/2-1/2

[Event "Medellin La Raza"]
[Site "Medellin"]
[Date "2003.10.15"]
[Round "1"]
[White "Alzate, Dario"]
[Black "Gamboa, Nelson"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2420"]
[BlackElo "2371"]
[PlyCount "92"]
[EventDate "2003.10.15"]
[EventRounds "11"]
[EventCountry "COL"]
[EventCategory "5"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Qc2 g6 5. e4 d6 6. cxb5 Bg7 7. Nc3 O-O 8. Nf3 a6
9. bxa6 ({RR} 9. h3 e6 10. dxe6 Bxe6 11. Be2 axb5 12. Bxb5 d5 13. exd5 Nxd5 14.
Nxd5 Bxd5 15. O-O Bxf3 16. gxf3 Qb6 17. a4 Nc6 18. Be3 Nd4 19. Bxd4 Bxd4 20.
Rae1 Rfd8 21. Re4 Rd5 22. Rfe1 Kg7 23. Re7 Rad8 {Butnorius,A (2442)-Sulskis,S
(2554) Kaunas 2010 1/2-1/2 (69)}) 9... Nfd7 $146 ({RR} 9... Bxa6 10. Bxa6 Nxa6
11. O-O Qb6 12. Bg5 Rfb8 13. Rfb1 h6 14. Bh4 Qb7 15. a3 Nc7 16. Nd2 Qa6 17. f3
e6 18. dxe6 Nxe6 19. Bf2 Rc8 20. Nd5 Nxd5 21. exd5 Nd4 22. Qc4 Qb7 23. Ne4 Qd7
24. Be1 {Altobelli,C-Tuma,D Villa Ballester 1993 0-1 (49)}) ({RR} 9... Qa5 10.
Bd2 Nxa6 11. a3 Bg4 12. Be2 Rfb8 13. O-O Nd7 14. Rfb1 Qc7 15. h3 Bxf3 16. Bxf3
c4 17. b4 Bd4 18. Ra2 Ne5 19. Be2 Qb6 20. Be1 Rf8 21. Kf1 f5 22. f3 Rac8 23.
Rd1 Be3 24. exf5 {Vovk,O (2151)-Bhatia,K (2034) Ronne 2013 1/2-1/2 (66)}) ({RR
} 9... Qa5 10. Bd2 Bxa6 11. Be2 Bxe2 12. Kxe2 Ng4 13. Rhc1 Qa6+ 14. Ke1 Nd7 15.
Bf4 Rfb8 16. h3 Ngf6 17. Rab1 Rb4 18. a3 Rb7 19. Qe2 Nh5 20. Qxa6 Rxa6 21. Bg5
Ne5 22. Nxe5 Bxe5 23. Kd1 Bf4 24. Bxf4 {Hesse,P (2415)-Gaprindashvili,N (2430)
Leipzig 1977 1/2-1/2 (47)}) 10. Be2 Bxa6 11. O-O Nb6 12. Re1 Qc8 13. Bf4 Qb7
14. Rad1 Bxe2 15. Rxe2 Na6 16. a3 Nc4 17. e5 Rab8 18. Qe4 Qb3 19. Nd2 Nxd2 20.
Rdxd2 f5 21. Qa4 g5 22. Qxb3 Rxb3 23. Bxg5 Bxe5 24. Rxe5 dxe5 25. Bxe7 Rfb8 26.
d6 Rxc3 27. f3 Rc1+ 28. Kf2 Kf7 29. Bh4 Rc4 30. d7 Rxh4 31. d8=Q Rxd8 32. Rxd8
Rd4 33. Ra8 Nc7 34. Ra7 Rd7 35. a4 Ke6 36. Rb7 Kd6 37. Rb6+ Kd5 38. b4 cxb4 39.
Rxb4 Kc5 40. Rh4 Nd5 41. g4 f4 42. Rh6 Kd4 43. h4 Rb7 44. g5 Rb2+ 45. Kg1 Ke3
46. Rd6 Rd2 0-1

[Event "Medellin La Raza"]
[Site "Medellin"]
[Date "2003.10.16"]
[Round "2"]
[White "Gamboa, Nelson"]
[Black "Zapata, Alonso"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "2371"]
[BlackElo "2472"]
[PlyCount "217"]
[EventDate "2003.10.15"]
[EventRounds "11"]
[EventCountry "COL"]
[EventCategory "5"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O Qc7 7. Qe2 d6 8. c4
g6 9. Nc3 Bg7 10. Bg5 O-O 11. Rfd1 ({RR} 11. Rad1 Nbd7 12. Qd2 Ng4 13. Be2 Nge5
14. b3 Nc5 15. f4 Nc6 16. Nxc6 bxc6 17. Bf3 h6 18. Bh4 a5 19. Bf2 Nb7 20. Na4
Qe7 21. Rfe1 Rd8 22. Qc2 e5 23. f5 Qf6 24. g4 Ra6 25. c5 Bf8 {Omariev,M (2257)
-Aldokhin,I (2345) Dagomys 2009 1/2-1/2 (43)}) 11... Nbd7 12. Rac1 b6 13. Bb1
$146 ({RR} 13. Kh1 Bb7 14. f3 Rac8 15. Qd2 Rfd8 16. Bf1 Qb8 17. Nc2 Bf8 18. Qd4
Be7 19. Ne3 Rc5 20. Bh4 Re8 21. b4 Rc6 22. Bg5 Ba8 23. Bh6 Rec8 24. a3 Ne8 25.
Ng4 Ne5 26. Nxe5 dxe5 27. Qf2 Nd6 {Sharif,M (2470)-Hulak,K (2475) Marseille
1987 1/2-1/2 (64)}) ({RR} 13. Kh1 Bb7 14. Qd2 Nc5 15. f3 Rfe8 16. Bf1 Rad8 17.
b4 Ncd7 18. Nb3 Bf8 19. Qf4 Nh5 20. Bxd8 Qxd8 21. Qd2 Qh4 22. Qe1 Qg5 23. a3
Qe5 24. g3 g5 25. Bg2 Rc8 26. Ne2 Qf6 27. Qc3 Qg6 {Serebro,A (2225)-Kushch,N
(2360) Donetsk 1993 1-0 (45)}) 13... Bb7 14. f3 Qb8 15. Qf2 Re8 16. a3 Ra7 17.
Qh4 Ba8 18. Kh1 h5 19. Nc2 Nh7 20. Be3 Rc8 21. Ba2 Ne5 22. Na4 Rb7 23. Qf2 Nd7
24. Nb4 Nc5 25. Nc3 Rd7 26. Nd3 Rdc7 27. b4 Nd7 28. Bd4 Bh6 29. Be3 Bg7 30. Nb2
Rc6 31. a4 Rd8 32. Qd2 Bf8 33. f4 Nhf6 34. f5 Kh7 35. fxe6 fxe6 36. Nd3 Re8 37.
Nf4 Ne5 38. Qe2 Nfg4 39. Bd2 Qd8 40. Nh3 Be7 41. b5 Rc5 42. bxa6 Qc8 43. Nb5
Qxa6 44. Bb4 Qxa4 45. Bxc5 dxc5 46. Nc7 Rc8 47. Nxe6 Qa3 48. Nef4 Qe3 49. Qxe3
Nxe3 50. Re1 N3g4 51. Nd5 Bd8 52. Rc3 Bc6 53. Ra3 Kh6 54. Rb1 Nd7 55. Kg1 Bf6
56. Nxf6 Ngxf6 57. Re1 Bxe4 58. Nf2 Bf5 59. Re7 Re8 60. Rxe8 Nxe8 61. Nd1 Nd6
62. Ne3 Be6 63. Rd3 Nf7 64. Nd5 Kg7 65. Rd2 Nfe5 66. Nc7 Bf7 67. Nb5 Kf6 68.
Nd6 Be6 69. h3 Nc6 70. Rb2 Nb4 71. Bb3 Ne5 72. Rd2 Nec6 73. Ne4+ Kf5 74. Ng3+
Kf6 75. Ne4+ Kf5 76. Nd6+ Kf6 77. Ne8+ Kf7 78. Nc7 Nd4 79. Rf2+ Ke7 80. Nxe6
Kxe6 81. Ba4 Nd3 82. Rd2 Ne5 83. Rb2 Nxc4 84. Rb1 h4 85. Kf2 Kf6 86. Kg1 g5 87.
Kf2 b5 88. Bxb5 Na3 89. Rc1 Naxb5 90. Rxc5 Nd6 91. Ra5 N6f5 92. Ra6+ Ne6 93.
Ra5 Ned4 94. Rc5 Kg6 95. Rc4 Ne6 96. Kf3 Kh5 97. Rc8 Kg6 98. Ra8 Kf6 99. Ra6
Ng3 100. Ra3 Nf5 101. Ke4 Ne7 102. Ra6 Ng6 103. g3 hxg3 104. Kf3 Kf5 105. Kxg3
Nef4 106. Ra5+ Ne5 107. Ra4 Nh5+ 108. Kg2 Ng6 109. Ra5+ 1/2-1/2

[Event "Medellin La Raza"]
[Site "Medellin"]
[Date "2003.10.16"]
[Round "3"]
[White "Cuartas, Jaime Alexander"]
[Black "Gamboa, Nelson"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2419"]
[BlackElo "2371"]
[PlyCount "94"]
[EventDate "2003.10.15"]
[EventRounds "11"]
[EventCountry "COL"]
[EventCategory "5"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 g6 2. d4 Bg7 3. Nf3 c6 4. Nc3 d6 5. Be2 Nf6 6. O-O O-O 7. h3 Nbd7 8. e5
dxe5 9. dxe5 Ne8 ({RR} 9... Nd5 10. Nxd5 cxd5 11. Qxd5 Nxe5 12. Qxd8 Rxd8 13.
Nxe5 Bxe5 14. c3 Be6 15. Be3 b6 16. Rfd1 Kg7 17. Bf3 Rxd1+ 18. Rxd1 Rc8 19. Bd4
Kf6 20. Bxe5+ Kxe5 21. Re1+ Kf6 22. Rd1 Ke5 23. Re1+ Kf6 24. Rd1 {Radjabov,T
(2751)-Mamedyarov,S (2731) Elista 2008 1/2-1/2}) 10. Bc4 Nc7 11. Qe2 Nb6 $146 (
{RR} 11... b5 12. Bd3 Nc5 13. Rd1 Qe8 14. Bf4 Nxd3 15. Qxd3 Bf5 16. Qe2 c5 17.
Nd5 Nxd5 18. Rxd5 Qc6 19. Rad1 Be6 20. R5d2 a5 21. a3 h6 22. Qe3 Kh7 23. Bg3
Rfc8 24. Nh4 b4 25. f4 bxa3 26. bxa3 {Kostro,J (2405)-Gasiorowski,R (2231)
Wroclaw 1972 0-1 (39)}) 12. Rd1 Qe8 13. Bb3 Be6 14. Ne4 Nd7 15. Neg5 Nc5 16.
Nxe6 N7xe6 17. Bc4 b5 18. Bxe6 Nxe6 19. a4 a6 20. c4 bxa4 21. Rxa4 c5 22. Qc2
Qc6 23. Bd2 Rfd8 24. Rda1 h6 25. Ra5 Rdb8 26. Bc3 Nf4 27. Kh2 Rd8 28. Re1 Rd3
29. Re3 Rxe3 30. fxe3 Ne6 31. Ra1 Rd8 32. Kg3 Ng5 33. Nxg5 hxg5 34. Rd1 Rxd1
35. Qxd1 Qe4 36. Qd8+ Kh7 37. Qxe7 Qxe3+ 38. Kh2 Qf4+ 39. Kg1 Qxc4 40. Qxg5 Qe4
41. Qe7 Qe3+ 42. Kh1 Qc1+ 43. Kh2 Qf4+ 44. Kh1 Qc4 45. e6 Qf1+ 46. Kh2 Qf4+ 47.
Kh1 Qf1+ 1/2-1/2

[Event "Medellin La Raza"]
[Site "Medellin"]
[Date "2003.10.17"]
[Round "4"]
[White "Gamboa, Nelson"]
[Black "Rohl Montes, Juan Armando"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2371"]
[BlackElo "2390"]
[PlyCount "16"]
[EventDate "2003.10.15"]
[EventRounds "11"]
[EventCountry "COL"]
[EventCategory "5"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. O-O O-O 6. d3 h6 7. h3 d6 8. Bb3 (
{RR} 8. b3 a6 9. a4 Na5 10. Nd2 c6 11. Rb1 Bd4 12. Na2 b5 13. c3 Ba7 14. b4
Nxc4 15. dxc4 bxc4 16. Nxc4 Nxe4 17. Qf3 Bxf2+ 18. Rxf2 Nxf2 19. Kxf2 Qh4+ 20.
Qg3 Qxc4 21. Bxh6 Qxa2+ 22. Ke3 g6 {Jovanovic,M-Panfilii,L (1428) Budva 2013
0-1 (33)}) 8... Bb6 $146 ({RR} 8... Ne7 9. Na4 Ng6 10. Nxc5 dxc5 11. c3 Qd6 12.
Qe2 Nh5 13. Ne1 Ngf4 14. Qf3 Qg6 15. Kh2 Be6 16. Bd1 Nf6 17. Bxf4 exf4 18. Qxf4
c6 19. Qg3 Qxg3+ 20. Kxg3 Rad8 21. Bc2 b6 22. f4 Rfe8 23. Kf3 {Riabov,A-Gyopos,
S Komarno 1999 1-0 (45)}) ({RR} 8... a6 9. Be3 Bxe3 10. fxe3 Be6 11. Nd5 Bxd5
12. Bxd5 Nxd5 13. exd5 Ne7 14. c4 c6 15. dxc6 bxc6 16. Qe2 Qb6 17. b3 Nf5 18.
Rfe1 Rfe8 19. Qf2 d5 20. e4 Qxf2+ 21. Kxf2 dxe4 22. dxe4 Nd4 23. Nxd4 {Alcivar
Torres,I-Reyes Jara,P Cascavel 1996 1-0 (47)}) 1/2-1/2

[Event "Medellin La Raza"]
[Site "Medellin"]
[Date "2003.10.17"]
[Round "5"]
[White "Uribe, Mauricio"]
[Black "Gamboa, Nelson"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2387"]
[BlackElo "2371"]
[PlyCount "11"]
[EventDate "2003.10.15"]
[EventRounds "11"]
[EventCountry "COL"]
[EventCategory "5"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 c6 5. Nf3 d5 6. e5 1/2-1/2

[Event "Medellin La Raza"]
[Site "Medellin"]
[Date "2003.10.19"]
[Round "8"]
[White "Pupo, Emilio"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "C12"]
[WhiteElo "2368"]
[BlackElo "2371"]
[PlyCount "145"]
[EventDate "2003.10.15"]
[EventRounds "11"]
[EventCountry "COL"]
[EventCategory "5"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 {Finkel,A} e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3
Ne4 8. Qg4 Kf8 9. Bd3 Nxd2 10. Kxd2 c5 11. h4 ({RR} 11. Rb1 cxd4 12. cxd4 Qa5+
13. Ke2 Nc6 14. Qf4 b6 15. Nf3 Ba6 16. Qd2 Qxa2 17. Ra1 Bxd3+ 18. Qxd3 Qc4) ({
RR} 11. dxc5 Nd7 12. Qd4 Qe7 13. f4 Nxc5 14. Ne2 b6 15. Ke3 Ba6 16. Qb4 Rc8 17.
a4 Bxd3 18. cxd3 Nb7) ({RR} 11. f4 Nc6 12. dxc5 ({RR} 12. Nf3 Qa5 13. f5 c4 14.
Be2 exf5 15. Qg3 Be6 16. h4 g6) 12... Qa5 13. Ne2 d4 14. Rab1 dxc3+ 15. Nxc3
Qxc5 16. Ne4 Qa5+ 17. Ke3 b6 18. Rhd1) 11... Nc6 12. Rh3 c4 ({RR} 12... Qa5 13.
Rg3 g5 14. hxg5 hxg5 15. Qxg5 Ke8 16. Qf6 Rf8 17. dxc5 d4 18. Ne2) 13. Be2 Qa5
({RR} 13... Rg8 14. Qf4 ({RR} 14. Rf3 Ne7 15. Qf4 Nf5 ({RR} 15... Qe8 16. Nh3
Bd7 17. h5) 16. g4 g5 17. hxg5 hxg5 18. Qh2 Nh4 19. Rh3 Bd7 20. Nf3 Nxf3+ 21.
Bxf3 Ke7) 14... Bd7 15. Bh5 Be8 16. Ne2 ({RR} 16. Rf3 f5 17. Bxe8 Kxe8 18. h5
Qd7 ({RR} 18... Qg5 19. Qxg5 hxg5 20. Rg3 g4 21. f3 g6 22. hxg6 ({RR} 22. h6)
22... Rxg6 23. Ne2 Ke7 24. Nf4 Rg7 25. fxg4 fxg4 26. Rh1) 19. Rh3 Ne7 20. Nf3
Rb8 21. Nh4) 16... f5 17. g4 ({RR} 17. Bxe8) 17... Ne7 18. Rg1 Bxh5 19. gxh5
Qe8 20. Qf3 Rc8 21. Nf4 Rc6 22. Rhg3 Ra6 23. Qg2 Qf7 24. Qf1 Qe8 ({RR} 24...
Rxa2 25. Qb1 Ra6 26. Qxb7 Rb6 27. Qxa7) 25. R1g2 Kf7 26. Rg1 Rxa2 27. Qg2 Qf8
28. Rb1 {Anand,V (2781)-Kortschnoj,V (2673) Dos Hermanas 1999 CBM 071 [Finkel,
A] 1/2-1/2} {RR} b6 29. Rg6 Qe8 ({RR} 29... Nxg6 30. Qxg6+ Ke7 31. Qxe6+ Kd8
32. Qxd5+) 30. Rxe6 Qa4 31. Rc1) ({RR} 13... Bd7 14. Rf3 Ne7 15. Nh3 Nf5 16. h5
b5 17. Qf4 Be8 18. g4 Ne7 19. Rg1 a5 20. g5 Nf5 21. Qg4 hxg5 22. Nxg5 Ra7 23.
Ne4 Qh4 24. Qxh4 Nxh4 25. Rf4 Nf5 26. Nc5 Ke7 27. Bg4 g6 28. hxg6 {Hunt,A
(2454)-Markidis,K (2284) Skopje 2012 1-0 (41)}) 14. Qf4 $146 ({RR} 14. Rg3 Rg8
15. Qf4 Bd7 16. Bh5 Be8 17. Rf3 Ke7 18. Rg3 Qa3 19. Re3 b5 20. Bf3 b4 21. g4
Qb2 22. Rc1 Qxa2 23. cxb4 Rb8 24. g5 Nxb4 25. gxh6 gxh6 26. Qf6+ Kd7 27. Ne2
Rg6 28. Nc3 Rxf6 {Fernandez Zubitur,J-Neira Garcia,M (2024) San Sebastian 2007
0-1 (38)}) 14... Bd7 15. Bh5 Be8 16. Rf3 Ke7 17. Ne2 Rg8 18. Ke1 Qa3 19. Rb1
Nd8 20. Qd2 Rc8 21. Rg3 Kd7 22. Bf3 Kc7 23. Nf4 Kb8 24. Nh5 Qf8 25. Qf4 Nc6 26.
Qc1 Bd7 27. Kf1 Ne7 28. Bg4 Ng6 29. Nf4 Nxf4 30. Qxf4 Qe7 31. Bf3 g5 32. hxg5
hxg5 33. Qc1 Rh8 34. Ke2 Rcg8 35. Qb2 b6 36. Qb4 Qxb4 37. cxb4 Rh4 38. c3 Kc7
39. Rh3 Rxh3 40. gxh3 Kd8 41. Rg1 Ke7 42. Rg3 f6 43. exf6+ Kxf6 44. Bg4 a5 45.
bxa5 bxa5 46. Kd2 Rb8 47. Kc1 a4 48. a3 Be8 49. Rf3+ Ke7 50. Re3 Rb6 51. Bd1
Bg6 52. Bxa4 Rb1+ 53. Kd2 Ra1 54. Bd1 Ra2+ 55. Ke1 Rxa3 56. Bg4 Ra6 57. f3 Kf6
58. Re5 Bf7 59. Kf2 Ra1 60. Re2 Rc1 61. Re3 Rd1 62. f4 gxf4 63. Bxd1 fxe3+ 64.
Kxe3 e5 65. dxe5+ Kxe5 66. h4 Bg6 67. h5 Bf5 68. h6 Bh7 69. Bg4 Be4 70. Bh5 Bh7
71. Bf7 Kf6 72. Bxd5 Kg5 73. Be4 1-0

[Event "Medellin La Raza"]
[Site "Medellin"]
[Date "2003.10.20"]
[Round "9"]
[White "Gamboa, Nelson"]
[Black "Pazos Gambarrotti, Plinio"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "2371"]
[BlackElo "2381"]
[PlyCount "73"]
[EventDate "2003.10.15"]
[EventRounds "11"]
[EventCountry "COL"]
[EventCategory "5"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nc3 Bg7 5. Nf3 O-O 6. Be2 cxd4 7. exd4 d5 8. c5
Nc6 9. O-O Ne4 10. h3 ({RR} 10. Be3) 10... Bf5 ({RR} 10... e5 11. dxe5 Nxc3 12.
bxc3 Nxe5 13. Nxe5 Bxe5 14. Bh6 Re8 15. Bb5 Bd7 16. Rb1 Bc6 17. c4 dxc4 18.
Bxc4 Qxd1 19. Rfxd1 Rad8 20. Bg5 Rd4 21. Bb3 Kg7 22. Be3 Rdd8 23. Bc4 a6 24. f3
Bf6 25. Bf2 {Byway,P (2140)-Veremeichik,V (2340) Dresden 2013 0-1 (51)}) 11.
Be3 Nxc5 $146 ({RR} 11... Qd7 12. Kh2 Rfd8 13. Nh4 Nxc5 14. Nxf5 gxf5 15. dxc5
d4 16. Qc2 dxc3 17. bxc3 Qc7+ 18. g3 e6 19. Rab1 Rd7 20. Rfd1 Rad8 21. Rxd7
Rxd7 22. Qb3 Qe5 23. Bb5 Qe4 24. Bxc6 Qxc6 25. a4 h5 26. h4 {Havelka,P (1936)
-Pavlicek,P (2036) Ricany 2009 0-1 (38)}) 12. dxc5 d4 13. Bd2 dxc3 14. bxc3 Bd3
15. Bxd3 Qxd3 16. Rb1 Rfd8 17. Rxb7 Na5 18. Rb1 Qc4 19. Rb4 Qxc5 20. Qa4 Qc7
21. Be3 Rac8 22. Rb5 Nc4 23. Rc5 Nb6 24. Rxc7 Nxa4 25. Rxe7 Nxc3 26. Rxa7 Ra8
27. Rb7 h6 28. Ba7 Nxa2 29. Re1 Re8 30. Rd1 Rad8 31. Rdb1 Nc3 32. R1b6 Ne2+ 33.
Kh2 Nd4 34. Nxd4 Be5+ 35. g3 Bxd4 36. Ra6 Ra8 37. Ra2 1/2-1/2

[Event "World op 32nd"]
[Site "Philadelphia"]
[Date "2004.07.04"]
[Round "6"]
[White "Gamboa, Nelson"]
[Black "Bisguier, Arthur Bernard"]
[Result "1/2-1/2"]
[ECO "D40"]
[WhiteElo "2502"]
[BlackElo "2295"]
[PlyCount "64"]
[EventDate "2004.07.01"]
[EventRounds "9"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c5 5. e3 Nc6 6. a3 a6 7. dxc5 Bxc5 8. b4
Ba7 9. Bb2 O-O 10. Qc2 dxc4 ({RR} 10... d4 11. exd4 Nxd4 12. Nxd4 Bxd4 13. Be2
e5 14. O-O Be6 15. Na4 Bxb2 16. Qxb2 Qc7 17. Nc5 Bf5 18. Rfe1 Rfe8 19. Rad1 a5
20. Bf1 axb4 21. axb4 b6 22. Nb3 h6 23. h3 e4 24. c5 bxc5 25. Nxc5 {Aronian,L
(2821)-Melkumyan,H (2649) Germany 2013 1/2-1/2 (59)}) 11. Bxc4 h6 ({RR} 11...
b5 12. Bd3 Bb7 13. O-O Rc8 14. Qe2 Qe7 15. Rfd1 Rfd8 16. Rac1 Bb8 17. Ne4 Nxe4
18. Bxe4 Rxd1+ 19. Qxd1 h6 20. Bb1 g6 21. Qd3 Qd6 22. Qb3 Na7 23. Rxc8+ Bxc8
24. Be5 Qb6 25. Qc3 Bxe5 26. Nxe5 {Sonntag,H (2377)-Persson,M (2238) Rhodes
2013 1/2-1/2 (43)}) 12. Ne4 Nxe4 $146 ({RR} 12... Nd5 13. Rd1 Qe7 14. Bxd5 exd5
15. Rxd5 Be6 16. Rh5 f5 17. Nc5 Bxc5 18. bxc5 {1/2-1/2 (18) Dunnington,A (2420)
-Gormally,D (2425) London 1997}) 13. Qxe4 Qe7 14. O-O Bd7 15. Rfd1 Rad8 16. Rd2
Bb8 17. Rad1 Bc8 18. Bxa6 bxa6 19. Qxc6 Bb7 20. Qc5 Rxd2 21. Rxd2 Qxc5 22. bxc5
Rc8 23. Nd4 Bd5 24. Nf5 Rxc5 25. Ne7+ Kf8 26. Nxd5 Rxd5 27. Rxd5 exd5 28. Kf1
g6 29. Ke2 Ke7 30. Kd3 Kd6 31. h3 Bc7 32. f3 f5 1/2-1/2

[Event "World op 32nd"]
[Site "Philadelphia"]
[Date "2004.07.04"]
[Round "7"]
[White "Metrick, Andrew"]
[Black "Gamboa, Nelson"]
[Result "*"]
[ECO "B31"]
[WhiteElo "2319"]
[BlackElo "2502"]
[PlyCount "41"]
[EventDate "2004.07.01"]
[EventRounds "9"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. Nf3 c5 2. e4 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. h3 Bg7 6. O-O Nf6 7. d3 Nd7 8.
Nc3 e5 9. Be3 Qe7 10. Qd2 O-O ({RR} 10... Nf8 11. Ne2 Ne6 12. Ng5 Nxg5 13. Bxg5
f6 14. Be3 g5 15. Qc3 f5 16. exf5 Bxf5 17. Qxc5 Qxc5 18. Bxc5 h5 19. Ng3 Bg6
20. Rfe1 Kd7 21. Ne4 Bxe4 22. Rxe4 b6 23. Bb4 c5 24. Bc3 Rae8 25. Rae1 {
Castrillon Gomez,M (2155)-Diaz Narvaez,A (1971) Bogota 2013 1-0 (45)}) 11. Bh6
f6 $146 ({RR} 11... Rd8 12. Bxg7 Kxg7 13. Ne2 Nf8 14. b3 f6 15. Nh2 Ne6 16. f4
Nd4 17. Nxd4 cxd4 18. f5 g5 19. h4 h6 20. hxg5 hxg5 21. Nf3 Kf8 22. Kf2 Bd7 23.
Rh1 Kg7 24. Rh3 b6 25. Rah1 {1/2-1/2 (25) Rendle,T (2381)-Rudd,J (2288) London
2012}) ({RR} 11... Re8 12. Bxg7 Kxg7 13. Nh2 Nf8 14. f4 exf4 15. Qxf4 Ne6 16.
Qe5+ f6 17. Qg3 Nd4 18. Rf2 Qe5 19. Qe3 Nf5 20. Qf3 Nd4 21. Qe3 Bd7 22. Raf1
Rf8 23. Qd2 Rae8 24. Kh1 b5 25. b3 a5 26. a4 {Balanza Llama,C-Valdivia Pena,Y
(2045) Camaguey 2010 1-0 (42)}) 12. Bxg7 Kxg7 13. Nh2 a5 14. Ne2 Nb6 15. b3 Be6
16. Ng3 Nc8 17. Ng4 Qd7 18. Nf5+ Kh8 19. Qh6 Nd6 20. Qe3 b6 21. a4 *

[Event "World op 32nd"]
[Site "Philadelphia"]
[Date "2004.07.05"]
[Round "8"]
[White "Gamboa, Nelson"]
[Black "Bartholomew, John"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2371"]
[BlackElo "2342"]
[PlyCount "60"]
[EventDate "2004.07.01"]
[EventRounds "9"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. d4 c6 6. Bc4 Bf5 7. O-O e6 8.
Bd2 Bb4 9. a3 Bxc3 10. Bxc3 Qc7 11. Bd2 ({RR} 11. Bb3 Nbd7 12. Qe2 O-O 13. Ne5
Nxe5 14. dxe5 Ne4 15. g4 Nxc3 16. bxc3 Bg6 17. f4 Rfe8 18. Rae1 Qe7 19. f5 exf5
20. gxf5 Qg5+ 21. Qg2 Qxg2+ 22. Kxg2 Bh5 23. Kg3 g6 24. Kh4 Kg7 25. f6+ Kh6 {
Gruenfeld,Y (2505)-Berg,K (2295) Gausdal 1982 1-0 (35)}) ({RR} 11. Bd3 Bg4 12.
h3 Bh5 13. Be2 Nbd7 14. Ne5 Bxe2 15. Qxe2 Nxe5 16. dxe5 Nd5 17. Bd2 O-O 18. c4
Ne7 19. Bc3 Rad8 20. Rad1 Rxd1 21. Rxd1 Rd8 22. Rd3 Rxd3 23. Qxd3 Nc8 24. f4 g6
25. g4 Nb6 {Chomczyk,M (1808)-Grabowicz,M (1807) Warsaw 2012 1/2-1/2}) 11...
Nbd7 12. Nh4 $146 ({RR} 12. Bb3 O-O 13. h3 a5 14. a4 b5 15. Qe1 b4 16. Be3 Nd5
17. Qe2 Rfe8 18. Rac1 Rab8 19. Rfe1 h6 20. Qd1 Red8 21. Qe2 Re8 22. Qd2 Nxe3
23. Rxe3 Qd6 24. Rd1 Red8 25. Re2 Qc7 26. Qe1 Qf4 {Nowicki,E (2080)-Fischdick,
G (2290) Germany 1995 1/2-1/2}) ({RR} 12. c3 O-O 13. Re1 Rad8 14. Bg5 c5 15.
Be2 Qb6 16. b4 cxd4 17. Nxd4 Bg6 18. Qa4 e5 19. Nf3 a6 20. c4 e4 21. Nh4 Ne5
22. Nxg6 hxg6 23. Qb3 Nd3 24. Be3 Qe6 25. Red1 Qe5 26. Ra2 Nf4 {Egreteau,E
(2095)-Perez,S (2250) Cappelle la Grande 1995 0-1 (31)}) 12... Bg4 13. f3 Bh5
14. Qe2 O-O-O 15. Qf2 Nb6 16. Bd3 Nbd5 17. g3 Rhg8 18. c4 g5 19. Ng2 Nb6 20.
Ba5 Qd7 21. c5 Qxd4 22. Be4 Nxe4 23. fxe4 Qxf2+ 24. Rxf2 Nc4 25. Bxd8 Rxd8 26.
h3 Rd4 27. Re1 Ne5 28. Re3 Nc4 29. Re1 Ne5 30. Re3 Nc4 1/2-1/2

[Event "World op 32nd"]
[Site "Philadelphia"]
[Date "2004.07.06"]
[Round "9"]
[White "Kaufman, Larry C"]
[Black "Gamboa, Nelson"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2364"]
[BlackElo "2371"]
[PlyCount "116"]
[EventDate "2004.07.01"]
[EventRounds "9"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Re1 O-O 7. e5 Nd5 8. d4
cxd4 9. cxd4 Nc7 10. Nc3 Nxb5 11. Nxb5 a6 12. Nc3 d6 13. exd6 Qxd6 14. d5 Nb4 (
{RR} 14... Ne5 15. Bf4 Bg4 16. Bxe5 Bxe5 17. Rxe5 Qxe5 18. Nxe5 Bxd1 19. Rxd1
Rfd8 20. Kf1 Rac8 21. Ke2 f6 22. Nf3 Rc4 23. Rd4 Rxd4 24. Nxd4 Kf7 25. Kd3 Rc8
26. a4 Ke8 27. a5 Kd7 28. Ne6 h5 29. h4 {Glek,I (2551)-Ikonnikov,V (2559)
Belgium 2001 1-0 (52)}) 15. Bg5 Re8 16. Ne4 $146 ({RR} 16. Qb3 Bf5 17. Re2 b5
18. Rd1 Nd3 19. Nh4 Nf4 20. Re3 h6 21. Nxf5 gxf5 22. Bxf4 Qxf4 23. Rde1 Qd6 24.
Qc2 {1/2-1/2 (24) Korosciel,A (2109)-Jakubiec,E (2178) Polanica Zdroj 2005})
16... Qd7 17. d6 exd6 18. Qd2 Nc6 19. Nf6+ Bxf6 20. Bxf6 Re6 21. Qg5 b5 22. Qh4
h5 23. Rxe6 Qxe6 24. Re1 Ne5 25. Nxe5 dxe5 26. Bxe5 Bb7 27. f3 Re8 28. Bc3 Qb6+
29. Kf1 Rxe1+ 30. Qxe1 Qe6 31. Qd2 Qc4+ 32. Ke1 Qe6+ 33. Kf2 f6 34. Qd8+ Kg7
35. h4 Bd5 36. a3 Qc6 37. Qe7+ Bf7 38. g4 hxg4 39. fxg4 Qb6+ 40. Kf3 Qc6+ 41.
Kf2 Qb6+ 42. Kf1 Qe6 43. Qxe6 Bxe6 44. g5 a5 45. Bxa5 fxg5 46. hxg5 Kf7 47. Ke1
Ke7 48. Kd2 Kd6 49. Kc3 Kc6 50. Kb4 Bf5 51. Bd8 Bc2 52. b3 Bd1 53. Bf6 Bc2 54.
Bd4 Bd1 55. Be3 Bc2 56. a4 bxa4 57. bxa4 Kb7 58. a5 Ka6 1/2-1/2

[Event "Huila Centenary op"]
[Site "Nerva"]
[Date "2005.05.11"]
[Round "3"]
[White "Cuartas, Jaime Alexander"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2447"]
[BlackElo "2379"]
[PlyCount "0"]
[EventDate "2005.05.10"]
[EventRounds "9"]
[EventCountry "ESP"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1-0

[Event "Huila Centenary op"]
[Site "Nerva"]
[Date "2005.05.13"]
[Round "7"]
[White "Zapata, Alonso"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2520"]
[BlackElo "2379"]
[PlyCount "49"]
[EventDate "2005.05.10"]
[EventRounds "9"]
[EventCountry "ESP"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 {Blatny,P} c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7.
Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 ({RR} 11... O-O 12. Nc2
Rb8 13. Be2 Bg5 14. O-O a5 ({RR} 14... Ne7 15. Ncb4) 15. Qd3 Be6 16. Rfd1 Qd7
17. Qg3 h6 18. h4 Bd8 19. Nce3 Kh8 20. Rd2 Ne7 21. Rad1) 12. Nc2 O-O 13. a4
bxa4 14. Rxa4 Ne7 ({RR} 14... g6 15. b4 Bb7 16. Bc4 Kg7 17. O-O f5 18. f3 Ne7
19. exf5 Rxf5 20. Ra5 Nc6 21. Ra1 a5 22. f4 exf4 23. b5) ({RR} 14... Bb7 15.
Bc4 Na5 16. Ba2 Bc6 17. Rb4 Nb7 18. Rc4 Bb5 19. Rc7 Nc5 20. c4 Ba4 21. h4 Bh6)
({RR} 14... Rb8 15. b4 a5 16. b5 Ne7 17. Nce3 Bxe3 18. Nxe3 Qc7 19. c4 f5 20.
exf5 Nxf5 21. Nxf5 Rxf5 22. Be2 Bb7) ({RR} 14... Kh8 15. Be2 Bb7 ({RR} 15... a5
) 16. O-O Ne7 17. Bc4 f5 18. exf5 Rxf5 19. Rb4 Bc6 20. Nxe7 Qxe7 21. Bd5 Bxd5
22. Qxd5 Raf8 23. Re4 Qf6 24. Re2) ({RR} 14... a5 15. Bc4 Rb8 16. b3 Kh8 17.
O-O f5 18. exf5 Bxf5 19. Nce3 Be6 20. Qd3 Qd7 21. Ra2 Qf7 22. Qe4 Qb7 23. Rd1
g6) 15. Bc4 Bd7 ({RR} 15... a5 16. Nxe7+ Qxe7 17. b4 Bb7 18. bxa5 Bc6 19. Ra3
Bxe4 20. Bd5 Bxd5 21. Qxd5 Rac8 22. O-O Rc5 23. Qa2 Ra8 24. a6 Ra7 25. Nb4 Qe6
26. Rd1 Qxa2 27. Nxa2 Rc6 28. Nb4 Rb6 29. g3 f5 30. Rd5 {Ahmad,A (2393)-Wang,Y
(2734) Ha Long City 2009 0-1 (35)}) ({RR} 15... Bb7 16. O-O a5 17. Qd3 Bc6 18.
Ra2 Kh8 19. Nxe7 Bxe7 20. Bd5 Rc8 21. Bxc6 Rxc6 22. Rfa1 Qb8 23. Ne3 Rfc8 24.
Qd5 Bg5 25. Rxa5 g6 26. Qxc6 Rxc6 27. Ra8 Qxa8 28. Rxa8+ Kg7 29. Nd5 Bc1 30. b3
{Varga,V (2140)-Koncz,I (2210) Hunary 2013 1-0 (49)}) 16. Ra2 Kh8 $146 ({RR}
16... Rc8 17. Nxe7+ Bxe7 18. Bxa6 Ra8 19. Bc4 Rxa2 20. Bxa2 Bb5 21. Bd5 Qa5 22.
Na3 Ba6 23. Qb3 Kh8 24. Bc4 d5 25. Bxd5 f5 26. exf5 Rxf5 27. Bc4 Bc5 28. O-O
Bxa3 29. bxa3 Bxc4 30. Qxc4 Qxa3 31. Qe4 {Morris,W (2350)-Hoxie,K New York
1991 CBM 023 [Blatny,P] 1-0 (31)}) ({RR} 16... Bb5 17. Qd3 Nxd5 18. Qxd5 Bxc4
19. Qxc4 Qb6 20. O-O a5 21. Qd5 Kh8 22. b4 a4 23. Rfa1 f5 24. c4 fxe4 25. c5
dxc5 26. bxc5 Qf6 27. Ne3 Bxe3 28. fxe3 Qf5 29. c6 h6 30. Qc4 Kh7 31. Rf1 {
Diachuk,N (2037)-Kutsyj,A (2302) Yuzhny 2010 0-1 (58)}) 17. O-O Nc8 18. b4 a5
19. Nce3 Bxe3 20. Nxe3 Nb6 21. Be2 Be6 22. c4 Rc8 23. Rc2 g6 24. Qa1 Kg8 25. c5
1-0

[Event "American Continental 4th"]
[Site "Cali"]
[Date "2007.07.11"]
[Round "2"]
[White "Gamboa, Nelson"]
[Black "Rodriguez Vila, Andres"]
[Result "0-1"]
[ECO "A87"]
[WhiteElo "2386"]
[BlackElo "2547"]
[PlyCount "83"]
[EventDate "2007.07.10"]
[EventRounds "11"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. d4 f5 2. c4 Nf6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O d6 7. Nc3 Nc6 8. b3
Qe8 9. Bb2 ({RR} 9. Na4 Qd8 10. d5 Ne5 11. Bb2 Nxf3+ 12. Bxf3 Bd7 13. Rc1 c5
14. Nc3 a6 15. a3 Rc8 16. e3 Qe8 17. Ne2 g5 18. b4 b6 19. Bg2 Qg6 20. Qd3 Ng4
21. Bxg7 Qxg7 22. f4 b5 23. h3 cxb4 {Magerramov,E (2525)-Vyzmanavin,A (2610)
Moscow 1994 0-1 (47)}) 9... e5 10. d5 ({RR} 10. dxe5 dxe5 11. e3 e4 12. Nd4 Ne5
13. Qe2 a6 14. Rfd1 c5 15. Nc2 Nd3 16. Ne1 Nxb2 17. Qxb2 Qe5 18. Rac1 Be6 19.
Qc2 Bh6 20. Ne2 g5 21. Qc3 Qc7 22. Rd2 Bg7 23. Qc2 Ng4 24. h3 Ne5 {Banyai,I
(1977)-Hajdu,I (2113) Hungary 2013 1-0 (37)}) 10... Nd8 11. b4 $146 ({RR} 11.
Rc1 h6 12. a4 g5 13. c5 e4 14. Nd4 dxc5 15. Ncb5 Qe7 16. Ba3 b6 17. f3 a6 18.
Nc3 Qe5 19. e3 exf3 20. Nxf3 Qxe3+ 21. Kh1 Ng4 22. Rc2 Qe7 23. d6 Qxd6 24. Rd2
Qf6 25. Nd5 Qf7 {Summermatter,D (2435)-Vanka,M (2265) Prague 1989 1-0 (49)}) ({
RR} 11. Qd2 Bd7 12. b4 h6 13. h4 Nf7 14. Rac1 e4 15. Nd4 Rc8 16. Nd1 Ne5 17. c5
Qf7 18. c6 bxc6 19. dxc6 Be6 20. Nxe6 Qxe6 21. Qd4 Nd5 22. Qd2 Nb6 23. Bd4 Rf7
24. a4 Nbc4 25. Qc3 d5 {Efankov,E (2067)-Konenkin,D (2133) Serpukhov 2004 0-1
(34)}) 11... Nf7 12. Rc1 Qe7 13. a4 a5 14. bxa5 Rxa5 15. Ba3 b6 16. Bb4 Ra6 17.
Nd2 Bd7 18. Nb5 Rfa8 19. Qb3 e4 20. Nb1 Bxb5 21. axb5 R6a7 22. f4 Nd8 23. Na3
Nb7 24. h3 Nc5 25. Qe3 Ra4 26. Nc2 Nfd7 27. g4 Qf6 28. gxf5 gxf5 29. Qg3 Qg6
30. Qe3 Qf6 31. Qg3 Kf7 32. Kh1 Rg8 33. Rb1 Ra2 34. Rbc1 Bh8 35. Qf2 Nb3 36.
Rb1 Rxc2 37. Rxb3 Qd4 38. Qxd4 Bxd4 39. Re1 Nf6 40. h4 Rg4 41. Bh3 Rxh4 42. Kg2
0-1

[Event "Medellin IRT op 17th"]
[Site "Medellin"]
[Date "2010.08.06"]
[Round "4"]
[White "Guerra Tulcan, Lenin"]
[Black "Gamboa, Nelson"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2343"]
[BlackElo "2378"]
[PlyCount "116"]
[EventDate "2010.08.04"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c6 2. d4 g6 3. Bd3 Bg7 4. Ne2 d5 5. e5 Na6 6. c3 Nc7 7. Nd2 Nh6 $146 ({RR
} 7... f6 8. f4 Bg4 9. h3 Bxe2 10. Qxe2 f5 11. Nf3 e6 12. g4 Kd7 13. gxf5 exf5
14. Be3 Ne6 15. O-O-O b5 16. h4 h5 17. Rhg1 Ne7 18. Kd2 Rb8 19. Ke1 Bh6 20. Qd2
Rg8 21. b3 Qa5 22. Kf2 {Jovic,M (2225)-Zivkovic,D (2131) Nis 2013 1-0 (39)}) 8.
Nf1 f6 9. exf6 exf6 10. Nfg3 O-O 11. h4 f5 12. Bg5 Qe8 13. Qd2 Nf7 14. Be3 Ne6
15. O-O-O Nd6 16. f3 b5 17. Rde1 Nc4 18. Bxc4 bxc4 19. Nf4 Qf7 20. Nxe6 Bxe6
21. Bf4 Rfe8 22. h5 Bd7 23. hxg6 hxg6 24. Be5 Bxe5 25. Rxe5 Rxe5 26. dxe5 Re8
27. Qd4 Qg7 28. f4 Be6 29. Qc5 Qb7 30. Ne2 Qb6 31. Qxb6 axb6 32. Nd4 Bd7 33.
Nf3 Kg7 34. Ng5 Rh8 35. Rxh8 Kxh8 36. Kd2 Kg7 37. Ke3 c5 38. b4 cxb3 39. axb3
Kf8 40. b4 Ke7 41. bxc5 bxc5 42. Nf3 Bb5 43. Nd2 Ba4 44. Nf3 Bb5 45. Ne1 Bc6
46. Nd3 d4+ 47. cxd4 cxd4+ 48. Kxd4 Bxg2 49. Ke3 Kf7 50. Kf2 Bd5 51. Kg3 Kg7
52. Kh4 Kh6 53. Nc5 Bc6 54. Na6 Bd5 55. Nc7 Bc4 56. e6 g5+ 57. fxg5+ Kg6 58. e7
Bf7 1/2-1/2

[Event "Medellin IRT op 17th"]
[Site "Medellin"]
[Date "2010.08.07"]
[Round "7"]
[White "Gamboa, Nelson"]
[Black "Gallego Alcaraz, Andres Felipe"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "2378"]
[BlackElo "2386"]
[PlyCount "17"]
[EventDate "2010.08.04"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. g3 d6 6. Bg2 e6 7. O-O Nge7 8. d3
O-O 9. Be3 1/2-1/2

[Event "Medellin IRT op 17th"]
[Site "Medellin"]
[Date "2010.08.08"]
[Round "8"]
[White "Gamboa, Nelson"]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "B74"]
[WhiteElo "2378"]
[BlackElo "2575"]
[PlyCount "120"]
[EventDate "2010.08.04"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Ne2 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 Bd7 7. Be2 g6 8. O-O
Bg7 9. Be3 O-O 10. Nb3 a6 11. Bf3 Be6 ({RR} 11... Rc8 12. Na4 b5 13. Nb6 Rb8
14. Nxd7 Nxd7 15. e5 Qc7 16. exd6 exd6 17. Bxc6 Qxc6 18. Bd4 Bxd4+ 19. Nxd4 Qb6
20. f5 d5 21. c3 b4 22. Kh1 bxc3 23. bxc3 Nc5 24. Qd2 Ne4 25. Qh6 Qd6 26. Rf3 {
Cubas,J (2518)-Toth,C (2365) Osasco 2012 1-0 (45)}) ({RR} 11... Qc7 12. Na4 b5
13. Nb6 Rab8 14. Nxd7 Nxd7 15. c3 Nb6 16. Bf2 Nc4 17. Rb1 Rbc8 18. g4 e6 19.
Bg2 Rcd8 20. Qf3 Ne7 21. Rfd1 d5 22. e5 f6 23. Qh3 fxe5 24. Nc5 Qc8 25. fxe5
Rxf2 26. Nxe6 {Stojiljkovic,T (1774)-Djuric,R (2103) Nis 2013 0-1}) 12. Nd5
$146 ({RR} 12. Qe2 Bxb3 13. cxb3 e6 14. Rad1 Ne8 15. Rd2 Qc7 16. Rfd1 b5 17.
Qf2 Rb8 18. g4 Qa5 19. h4 Ne7 20. Bd4 Bxd4 21. Qxd4 Qb6 22. Qxb6 Rxb6 23. b4
Nc8 24. Ne2 Rc6 25. Rc1 Rxc1+ 26. Nxc1 Ne7 {Habib,G (1730)-Alard,F (1630)
Provence 1991 1/2-1/2 (33)}) 12... Nd7 13. Nd4 Bxd5 14. exd5 Nxd4 15. Bxd4 Rc8
16. Bxg7 Kxg7 17. Qd4+ Kg8 18. c4 Qc7 19. Bg4 f5 20. Be2 Qc5 21. Qxc5 Nxc5 22.
Rfe1 Rc7 23. Bf1 Rb8 24. Rac1 Kf7 25. Re3 Nd7 26. Rce1 Nf6 27. Rb3 h5 28. Bd3
Nd7 29. Bf1 Nc5 30. Rc3 Ne4 31. Rce3 b5 32. cxb5 axb5 33. Rb3 b4 34. Rd1 Ra8
35. Rxb4 Rxa2 36. Bc4 Ra5 37. Bb5 Rca7 38. Be2 Ra1 39. Kf1 R7a4 40. Rxa4 Rxa4
41. Bf3 Nc5 42. g3 Rb4 43. Rb1 Na4 44. b3 Nc5 45. Bd1 Ne4 46. Rb2 Rd4 47. Be2
Rd2 48. Rxd2 Nxd2+ 49. Kf2 Nxb3 50. h3 Nc5 51. Ke3 Ne4 52. g4 hxg4 53. hxg4 Nf6
54. gxf5 Nxd5+ 55. Kd4 Nxf4 56. Bc4+ Kf6 57. fxg6 Kxg6 58. Ke4 d5+ 59. Bxd5
Nxd5 60. Kxd5 Kf5 0-1

[Event "Nancy FFE 2nd Stage"]
[Site "Nancy"]
[Date "2012.04.28"]
[Round "3"]
[White "Gamboa, Nelson"]
[Black "Fressinet, Laurent"]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "2355"]
[BlackElo "2693"]
[PlyCount "84"]
[EventDate "2012.04.28"]
[EventType "rapid"]
[EventRounds "9"]
[EventCountry "FRA"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nc6 5. Nf3 Nf6 6. Bf4 a6 7. e3 Bg4 8. Be2
e6 9. O-O Be7 10. Ne5 Bxe2 11. Qxe2 Rc8 ({RR} 11... Nxe5 12. Bxe5 O-O 13. Rfc1
Rc8 {1/2-1/2 (13) Goldin,A (2580)-Oll,L (2610) Chicago 1995}) 12. Rac1 ({RR}
12. Nxc6 Rxc6 13. Rfc1 Qd7 14. Qd1 O-O 15. Ne2 Rc4 16. Bg5 Rfc8 17. Bxf6 Bxf6
18. b3 R4c6 19. Rxc6 bxc6 20. Rc1 Be7 21. Nf4 c5 22. dxc5 Rxc5 23. Rxc5 Bxc5
24. Qd3 Qb7 25. h4 g6 26. g3 a5 {Pesuto,I (2131)-Alonso,S (2521) Buenos Aires
2013 0-1 (97)}) 12... O-O 13. Nxc6 Rxc6 14. Na4 $146 ({RR} 14. Rc2 Qa5 15. Rfc1
Rfc8 16. a3 Ne4 17. f3 Nxc3 18. bxc3 Bxa3 19. Ra1 Rxc3 20. Qe1 b5 21. Bd6 b4
22. Rxc3 Rxc3 23. Bc5 Qb5 24. Qh4 h6 25. Qe7 Qe2 26. Kh1 Bc1 27. h3 Rc2 28.
Qf8+ Kh7 {Mari Sancho,R (2262)-Barbera Estelles,R (2211) Valencia 2009 0-1})
14... Qd7 15. Nc5 Bxc5 16. dxc5 Rfc8 17. b4 a5 18. bxa5 Ne4 19. Qb2 Nxc5 20.
Rb1 f6 21. Rfd1 Qd8 22. Qa3 Ra6 23. Rb5 Ne4 24. Rxb7 Rxa5 25. Qb3 Nc5 26. Qb6
Nxb7 27. Qxb7 e5 28. Bg3 Qc7 29. Qb4 Rxa2 30. h4 Qf7 31. Qg4 Rac2 32. Kh2 h5
33. Qf3 R2c5 34. Qe2 Qg6 35. Qf3 Qg4 36. Qxg4 hxg4 37. Rd2 Kf7 38. Kg1 Ke6 39.
Kh2 Rc1 40. Ra2 Rd1 41. h5 Rh8 42. Ra6+ Kf5 0-1

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.05"]
[Round "2"]
[White "Nunez V, Daniel Fernando"]
[Black "Gamboa, Nelson"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2211"]
[BlackElo "2355"]
[PlyCount "56"]
[EventDate "2012.10.04"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 f5 6. e3 Nf6 7. Nge2 O-O 8. O-O
d6 9. Rb1 Be6 10. Nd5 a5 11. a3 g5 ({RR} 11... Bf7 12. Nxf6+ Bxf6 13. Nc3 Bg7
14. Bd2 Be6 15. Qa4 Qd7 16. Nd5 Qd8 17. Bc3 Kh8 18. f4 Nb8 19. Qd1 Ra7 20. fxe5
dxe5 21. d4 Bf7 {1/2-1/2 (21) Meier,G (2637)-Iordachescu,V (2614) Belfort 2012}
) ({RR} 11... Rb8 12. b4 axb4 13. axb4 Ne7 14. e4 c6 15. Nxe7+ Qxe7 16. Qc2
fxe4 17. dxe4 d5 18. exd5 cxd5 19. Bg5 d4 20. Bd5 Bxd5 21. cxd5 Qd7 22. Bxf6
Bxf6 23. Qb3 Rbd8 24. Nc1 e4 25. d6+ Kg7 26. Qd5 {Aliev,V (2139)-Ivlev,A (2132)
Astrakhan 2013 0-1 (48)}) 12. f4 gxf4 13. gxf4 Kh8 $146 ({RR} 13... Qd7 14. b4
axb4 15. axb4 Rae8 16. b5 Nd8 17. Bb2 Bxd5 18. cxd5 Ng4 19. Qd2 exf4 20. Nxf4
Nxe3 21. Rf3 Bxb2 22. Qxb2 Ng4 23. Rg3 Qe7 24. Ne6 Rf7 25. Qd4 Qh4 26. Rh3 Qf6
27. Qf4 Nxe6 28. dxe6 {Yanayt,E (2130)-Curdo,J (2271) Chelmsford 2001 0-1 (32)}
) ({RR} 13... Ne8 14. Ng3 Qh4 15. Qh5 {1/2-1/2 (15) Nikolaidis,I (2565)
-Kholmov,R (2465) Perm 1997}) 14. b4 axb4 15. axb4 e4 16. b5 Ne7 17. Nd4 Bd7
18. Nxf6 Rxf6 19. dxe4 fxe4 20. Bxe4 Bh3 21. Rf2 Qg8 22. Bb2 Qxc4 23. Rc1 Qg8
24. Kh1 d5 25. Bd3 c6 26. Qh5 Bd7 27. Rg2 Be8 28. Qh3 Rh6 1-0

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.07"]
[Round "7"]
[White "Gamboa, Nelson"]
[Black "Sanchez, Victor Hugo"]
[Result "1/2-1/2"]
[ECO "E81"]
[WhiteElo "2355"]
[BlackElo "2235"]
[PlyCount "39"]
[EventDate "2012.10.04"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 a6 7. Qd2 c6 8. g4 e5 (
{RR} 8... b5 9. g5 Nh5 10. Nce2 e5 11. d5 bxc4 12. Nc3 c5 13. Bxc4 Nd7 14. Na4
Rb8 15. a3 f5 16. gxf6 Ndxf6 17. Nc3 Nd7 18. O-O-O Nb6 19. Bf1 Nf4 20. h4 Bd7
21. Rh2 Na4 22. Nxa4 Bxa4 23. Re1 {Suttles,D (2470)-Gligoric,S (2575) San
Antonio 1972 0-1 (48)}) 9. dxe5 $146 ({RR} 9. Nge2 Qc7 10. O-O-O Nbd7 11. h4 h5
12. g5 Nh7 13. f4 Re8 14. Bh3 exd4 15. Bxd4 Nc5 16. Bxg7 Kxg7 17. Qd4+ Kg8 18.
e5 Bxh3 19. Rxh3 Qa5 20. exd6 Nf8 21. f5 gxf5 22. Nf4 Nce6 23. Nxe6 Rxe6 {
Kostyra,S (2280)-Klimaszewski,D (2212) Bialystok 2013 1-0 (37)}) ({RR} 9. d5
cxd5 10. Nxd5 Nxd5 11. cxd5 f5 12. gxf5 gxf5 13. O-O-O Nd7 14. Ne2 Nf6 15. Nc3
fxe4 16. fxe4 Bg4 17. Be2 Rc8 18. Bxg4 Nxg4 19. Rhg1 Nxe3 20. Qxe3 Qh4 21. Qg5
Qxg5+ 22. Rxg5 Kh8 23. Rf5 Rxf5 {Alexandre,J (2300)-Parcerias,P (2290)
Portugal 1993 1/2-1/2 (42)}) 9... dxe5 10. Qxd8 Rxd8 11. Na4 Nbd7 12. Rd1 Re8
13. c5 Rb8 14. h4 Nf8 15. Bc4 Be6 16. Nb6 Rbd8 17. Rh2 Bxc4 18. Nxc4 Rxd1+ 19.
Kxd1 Rd8+ 20. Rd2 1/2-1/2

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.08"]
[Round "8"]
[White "Gamboa, Nelson"]
[Black "Beltran, Carlos Armando"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2355"]
[BlackElo "2210"]
[PlyCount "63"]
[EventDate "2012.10.04"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. d4 e6 2. c4 Bb4+ 3. Nd2 d5 4. e3 ({RR} 4. Qa4+ Nc6 5. Ngf3 Bd7 6. Qc2 Nf6 7.
e3 O-O 8. a3 Bd6 9. b4 a6 10. Bb2 dxc4 11. Nxc4 b5 12. Nce5 Ne7 13. Nxd7 Qxd7
14. Bd3 a5 15. bxa5 Ng6 16. h4 Rfc8 17. h5 Nf8 18. e4 Ne8 {Riazantsev,A (2708)
-Rakhmanov,A (2602) Khanty-Mansiysk 2013 1-0 (40)}) ({RR} 4. a3 Be7 5. e4 dxe4
6. Nxe4 Nf6 7. Nc3 c5 8. Nf3 cxd4 9. Nxd4 Nc6 10. Be3 Nxd4 11. Qxd4 Qxd4 12.
Bxd4 Bd7 13. Be2 O-O 14. O-O Rfd8 15. Rfd1 Bc6 16. Be3 Ne4 17. Nxe4 Bxe4 18. f3
Bc2 {Jussupow,A (2587)-Istratescu,A (2651) Switzerland 2013 1/2-1/2 (32)}) 4...
Ne7 $146 ({RR} 4... Nf6 5. a3 Be7 6. Bd3 O-O 7. Ne2 b6 8. O-O Bb7 9. cxd5 exd5
10. Ng3 Re8 11. b3 Nbd7 12. Bb2 c5 13. Rc1 Rc8 14. Qf3 Rc7 15. Nf5 Bf8 16. Qg3
g6 17. dxc5 bxc5 18. Rfd1 Nh5 19. Qh3 {Tjiam,D (2333)-Baert,A (2184) Belgium
2000 1/2-1/2 (75)}) ({RR} 4... Nf6 5. a3 Be7 6. Ngf3 b6 7. Bd3 c5 8. O-O cxd4
9. Nxd4 O-O 10. b3 Bb7 11. Bb2 Nbd7 12. Rc1 Nc5 13. Bb1 dxc4 14. Nxc4 Qd5 15.
f3 Rfd8 16. b4 Ncd7 17. Qe2 Qh5 18. e4 Nf8 19. Rfd1 {Zamikhovsky,A-Gindin,E
Kiev 1963 1-0 (34)}) 5. Ngf3 c5 6. dxc5 Nbc6 7. a3 Bxc5 8. b4 Bd6 9. Bb2 O-O
10. Bd3 dxc4 11. Nxc4 Bc7 12. Qc2 h6 13. Rd1 Qe8 14. b5 Nd8 15. a4 a6 16. O-O
axb5 17. axb5 Bd7 18. b6 Bb8 19. Qc3 f6 20. Qd4 Bc6 21. Qg4 Ra4 22. Bc2 h5 23.
Qd4 Nf5 24. Qc5 Bxf3 25. gxf3 Ra2 26. Bb1 Qg6+ 27. Kh1 Qg5 28. Ba3 Rxa3 29.
Qxa3 Qh4 30. f4 Nh6 31. f3 Ndf7 32. Qe7 1-0

[Event "Latin Cup-A 3rd"]
[Site "Cali"]
[Date "2012.10.09"]
[Round "9"]
[White "Duran Vega, Sergio"]
[Black "Gamboa, Nelson"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2304"]
[BlackElo "2355"]
[PlyCount "47"]
[EventDate "2012.10.04"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 Nf6 8.
Bg5 Be7 9. Nc4 O-O 10. Bxf6 gxf6 11. Ne3 Be6 12. Ncd5 Kh8 13. Be2 Rg8 14. Bg4
$146 ({RR} 14. O-O Rc8 15. c3 Qf8 16. Bg4 Rd8 17. h3 Qg7 18. Nc7 Bxg4 19. hxg4
Rd7 20. Ncd5 Bd8 21. Qf3 Qg5 22. g3 Rg6 23. Kg2 Ne7 24. Nxe7 Bxe7 25. Rh1 Rg8
26. Rh5 Qg6 27. Rah1 Rdd8 28. Rh6 {1-0 (29) Hautot,S (2420)-Guillaumat,J (1953)
Arvier 2009}) 14... Bf8 15. Bf5 Nd4 16. c3 Nxf5 17. exf5 Bxd5 18. Qxd5 Qc7 19.
O-O Rb8 20. a4 b5 21. axb5 Rxb5 22. Qd3 Qb7 23. Rfd1 e4 24. Qd4 1/2-1/2

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2013.08.04"]
[Round "2"]
[White "Gamboa, Nelson"]
[Black "Martinez, Jorge Alexander"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2348"]
[BlackElo "2176"]
[PlyCount "54"]
[EventDate "2013.08.03"]
[EventRounds "9"]
[EventCountry "COL"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]

1. e4 c5 2. Nc3 e6 3. f4 d5 4. e5 Ne7 5. Nf3 Nbc6 6. g3 Nf5 7. Bg2 Be7 ({RR}
7... h5 8. d3 b6 9. Ne2 Bb7 10. c3 d4 11. h3 dxc3 12. bxc3 Qd7 13. O-O Rd8 14.
Ne1 Nce7 15. Bxb7 Qxb7 16. Qa4+ Rd7 17. Qe4 Nd5 18. a3 c4 19. d4 h4 20. g4 Ng3
21. Nxg3 hxg3 22. Bd2 {Skripchenko,A (2450)-Galliamova,A (2526) New Delhi 2000
1-0 (42)}) 8. d3 ({RR} 8. O-O O-O 9. Ne2 Qb6 10. d3 Rd8 11. c3 Bd7 12. d4 cxd4
13. cxd4 Ncxd4 14. Nexd4 Bc5 15. Kh1 Nxd4 16. Ng5 h6 17. Nf3 Bb5 18. Re1 Nxf3
19. Qxf3 Rac8 20. a4 Bc6 21. a5 Qb4 22. Qe2 Bb5 {Canino,R-Lye,L (1568)
Chiangmai 2013 0-1 (34)}) 8... h5 9. O-O g6 $146 ({RR} 9... Qb6 10. Ne2 Bd7 11.
c3 d4 12. Qe1 Qa6 13. Qd1 Rd8 14. c4 b5 15. b3 bxc4 16. bxc4 Rb8 17. Ng5 Bxg5
18. fxg5 g6 19. Rxf5 exf5 20. Nf4 Be6 21. Bd5 Nd8 22. a4 Qa5 23. Bd2 Qc7 24.
Qc2 {Sexauer,A-Erismann,P (2148) Germany 2012 0-1 (40)}) ({RR} 9... h4 10. g4
h3 11. gxf5 hxg2 12. Kxg2 exf5 13. d4 cxd4 14. Nb5 Be6 15. Nbxd4 Kf8 16. Be3 g6
17. c3 Kg7 18. Nxc6 bxc6 19. b4 a5 20. a3 Qc7 21. Bc5 Bxc5 22. bxc5 a4 23. Qd4
Rhb8 24. Rab1 {Siebarth,M (2051)-Friedrich,P (1750) Bad Sulza 2004 0-1 (31)})
10. Ne2 h4 11. gxh4 Nxh4 12. Nxh4 Bxh4 13. c3 b6 14. b4 Kf8 15. Rb1 Ne7 16.
bxc5 bxc5 17. Qa4 a5 18. Be3 Ba6 19. Rfd1 Rc8 20. Qa3 d4 21. cxd4 Nf5 22. Bc1
Nxd4 23. Qb2 Nf5 24. Qb6 Bxd3 25. Qxd8+ Rxd8 26. Nc3 Bxb1 27. Rxd8+ Bxd8 0-1