| ECO A06 in 1989 play it! perez defeats black's lopez colon in 69 moves | 1. Nf3 d5 2. d4 e6 3. c4 f5 4. Nc3 Nf6 5. Bg5 c6 6. Qb3 Be7 7. e3 O-O 8. Bxf6 Bxf6 9. Bd3 Qe8 10. O-O-O a6 11. cxd5 cxd5 12. Kb1 Nc6 13. h4 b5 14. Ng5 h6 15. Nf3 Bd7 16. Rdg1 b4 17. Ne2 a5 18. Qd1 a4 19. Nf4 b3 20. a3 Qb8 21. g4 fxg4 22. Nd2 Nxd4 23. Qxg4 Nf5 24. Ng6 Qd6 25. Nf3 Rfb8 26. Nd4 Nxd4 27. exd4 e5 28. Qg3 Re8 29. Re1 Qb6 30. dxe5 Bd8 31. Rhg1 Bb5 32. Bf5 Ra7 33. Nf4 Rf8 34. Be6+ Kh7 35. Bxd5 |
| ECO A05 in 1946 play it! perez defeats black's llorens r in 81 moves | 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 Nd5 10. Nxf7 Qxh4 11. Nxh8 Bb4 12. Qd2 c5 13. a3 Ba5 14. O-O-O cxd4 15. Qxd4 Qg5+ 16. f4 Nxf4 17. Kb1 Bxc3 18. bxc3 Nd7 19. g3 Nd5 20. Bh3 Nxe5 21. Kb2 Qe3 22. Bg2 Nd3+ 23. Ka1 Qe2 24. Rxd3 cxd3 25. Bxd5 exd5 26. Qxd5 Be6 27. Qxa8+ Ke7 28. Qxa7+ Ke8 29. Qb8+ Ke7 30. Qa7+ Ke8 31. Qb8+ Ke7 32. Ng6+ Kf6 33. Qe5+ Qxe5 34. Nxe5 Kxe5 35. Re1+ Kd5 36. Kb2 Bg4 37. Kc1 Be2 38. Kd2 Kc4 39. Rb1 h5 40. h3 Kc5 41. g4 |
| ECO A09 in 1946 play it! perez defeats black's cherta p in 69 moves | 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. g3 e6 6. Bg2 Nbd7 7. O-O Bd6 8. Nc3 O-O 9. d3 Qe7 10. Qc2 h6 11. Rad1 Rfd8 12. Qb1 Ba3 13. Qa1 a5 14. Rfe1 Qb4 15. Nd4 Bxb2 16. Qxb2 Bg6 17. Nc2 Qe7 18. Rc1 Nb6 19. cxd5 Nbxd5 20. Na4 b5 21. Nc3 Rab8 22. Nd4 Nb4 23. Nxc6 Nxc6 24. Bxc6 b4 25. Na4 Nd5 26. Rc2 Qg5 27. Rec1 Bh5 28. Rc5 Qg4 29. R1c2 Rbc8 30. R5c4 Qg6 31. Bxd5 Rxd5 32. Rxc8+ Kh7 33. Nb6 Rxd3 34. exd3 Qxd3 35. Rd2 |
| ECO A10 in 1992 play it! perez defeats black's galvan jl in 89 moves | 1. c4 g6 2. g3 Bg7 3. Bg2 c6 4. Nc3 Nf6 5. e4 d6 6. Nge2 c5 7. d4 Nbd7 8. O-O O-O 9. d5 Ne5 10. b3 Nh5 11. f4 Ng4 12. f5 Nhf6 13. h3 Ne5 14. g4 a6 15. Be3 Bd7 16. Bf4 Ne8 17. a4 Nc7 18. a5 Rb8 19. Na4 Bxa4 20. Rxa4 b5 21. axb6 Rxb6 22. g5 Qd7 23. Ra2 Rfb8 24. Nc1 gxf5 25. Bxe5 Bxe5 26. exf5 Bd4+ 27. Kh1 Be3 28. Qh5 Qe8 29. Be4 f6 30. g6 h6 31. Re2 Bxc1 32. Rxc1 Kg7 33. Bc2 R6b7 34. Rce1 Na8 35. Re4 Nb6 36. Rh4 Qh8 37. Ree4 Rg8 38. Qe2 Kf8 39. Qe3 Qg7 40. Rxh6 Ke8 41. Rh7 Qf8 42. Rf7 Qxf7 43. gxf7+ Kxf7 44. Rh4 Rg7 45. Qe6+ |
| ECO A30 in 1989 play it! perez defeats black's gonzalez in 69 moves | 1. c4 c5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 d5 5. cxd5 Nxd5 6. Nc3 g6 7. Nxd5 Qxd5 8. O-O Bg7 9. d3 O-O 10. a3 Qd6 11. Rb1 Rb8 12. Nd2 b6 13. b4 cxb4 14. axb4 Bb7 15. Ne4 Qd7 16. Qa4 Qe6 17. Ng5 Qd6 18. Ne4 Qe6 19. Ng5 Qd6 20. Ne4 Qd7 21. Bb2 Bxb2 22. Rxb2 Qd4 23. Qa3 Ne5 24. Rb3 b5 25. Rc1 Ng4 26. e3 Qb6 27. Rbc3 Ne5 28. Rc7 Nc6 29. Rd7 Ba8 30. Nc5 Rbd8 31. d4 Rxd7 32. Nxd7 Qc7 33. Nxf8 Qd6 34. Qc3 Nxd4 35. Qxd4 |
| ECO A13 in 1989 play it! perez defeats black's nascimento alexa in 71 moves | 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Be7 5. e3 c6 6. Nf3 Nbd7 7. Qc2 O-O 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. a3 Nxc3 12. Qxc3 c5 13. O-O b6 14. e4 Bb7 15. Qe3 cxd4 16. Nxd4 Nc5 17. f3 Rfd8 18. b4 Nd7 19. e5 a5 20. Rab1 axb4 21. axb4 Ra4 22. Nc2 Ba6 23. Bb3 Bxf1 24. Bxa4 b5 25. Bb3 Bc4 26. Bxc4 bxc4 27. Ra1 Nf8 28. h3 Ng6 29. Kh2 Qh4 30. b5 Qf4+ 31. Qxf4 Nxf4 32. b6 Nd5 33. b7 Nc7 34. Nd4 Rb8 35. Nb5 Ne8 36. Ra8 |
| ECO A15 in 1992 play it! perez defeats black's najera p in 47 moves | 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e3 O-O 5. Ne2 d6 6. O-O Nc6 7. Nbc3 a6 8. d3 Rb8 9. Rb1 Bf5 10. b4 Ne5 11. e4 Bd7 12. f4 Nc6 13. a4 Ng4 14. h3 Nh6 15. g4 f5 16. gxf5 gxf5 17. Qe1 e6 18. Nd1 Ne7 19. b5 axb5 20. axb5 Ng6 21. Kh2 Nh4 22. Rg1 Kf7 23. Qf2 Rg8 24. Bh1 |
| ECO A13 in 1989 play it! perez defeats black's rubio purrinos h in 35 moves | 1. c4 e6 2. e4 d5 3. e5 c5 4. cxd5 exd5 5. d4 Nc6 6. Bb5 Qb6 7. Nc3 Be6 8. Nf3 Be7 9. O-O a6 10. Ba4 O-O-O 11. Bxc6 Qxc6 12. dxc5 Bxc5 13. Na4 Kb8 14. Nxc5 Qxc5 15. Be3 Qa5 16. Qd4 Ne7 17. Rac1 Nc6 18. Rxc6 |
| ECO B99 in 1992 play it! perez defeats black's diaz perez jose in 96 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 10. Bd3 b5 11. Rhe1 Bb7 12. Qg3 O-O-O 13. Bxb5 axb5 14. Ndxb5 Qb6 15. e5 Nc5 16. exf6 gxf6 17. Bh4 Rhg8 18. Qe3 Rxg2 19. Bg3 f5 20. Qd4 Kb8 21. Qg7 Rf8 22. Qxh7 Ne4 23. Nxe4 Bxe4 24. Rxe4 fxe4 25. Nd4 Qb7 26. Re1 Qd5 27. Qxe4 Qxe4 28. Rxe4 Kb7 29. Re2 Rg1+ 30. Kd2 Bf6 31. c3 Bxd4 32. cxd4 Kc6 33. f5 Kd5 34. fxe6 fxe6 35. b3 Rc8 36. Kd3 Rc6 37. Rd2 Rf1 38. Ke2 Ra1 39. Kd3 Rac1 40. Ke3 R1c2 41. a4 Rxd2 42. Kxd2 Kxd4 43. b4 e5 44. b5 Rc4 45. Bf2+ Kd5 46. a5 Rb4 47. b6 Rb2+ 48. Ke1 Kc6 |
| ECO B41 in 1986 play it! perez defeats black's acevedo v in 93 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 d5 6. exd5 Nxd5 7. a3 Be7 8. O-O Bf6 9. Ne2 O-O 10. c4 Ne7 11. Qc2 Ng6 12. Nbc3 Nc6 13. Ne4 Be7 14. f4 b6 15. Be3 Bb7 16. N4g3 f5 17. Rad1 Qe8 18. c5 Bxc5 19. Bxc5 bxc5 20. Qxc5 Rc8 21. Bb5 a6 22. Ba4 Qf7 23. Qb6 Qc7 24. Qxc7 Rxc7 25. Rd6 Na5 26. Rxe6 Nh4 27. b4 Nc4 28. Bb3 Rfc8 29. Rc1 Kf8 30. Bxc4 Rxc4 31. Rxc4 Rxc4 32. Rb6 Rc7 33. Nd4 Rd7 34. Ngxf5 Nxf5 35. Nxf5 Rc7 36. Nd4 Ke7 37. g4 g6 38. f5 gxf5 39. gxf5 Kf7 40. Ne6 Rc1+ 41. Kf2 Bc8 42. Ng5+ Kg8 43. f6 Rc2+ 44. Kg3 Rc3+ 45. Kf4 h6 46. f7+ Kg7 47. Rxh6 |
| ECO B62 in 1992 play it! perez defeats black's gonzalez in 75 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 Bd7 8. Bxc6 bxc6 9. Qf3 Be7 10. O-O-O e5 11. Nf5 Bxf5 12. Qxf5 Qd7 13. Qxd7+ Nxd7 14. Be3 Nb6 15. b3 O-O-O 16. Rd3 Kb7 17. Rhd1 Rd7 18. Ne2 Kc7 19. c4 h6 20. Kc2 Rhd8 21. f3 Bg5 22. Bf2 Nc8 23. b4 a6 24. Nc3 Be7 25. Kb3 g6 26. a4 f5 27. b5 axb5 28. cxb5 fxe4 29. fxe4 Rf8 30. Bg1 Bd8 31. a5 cxb5 32. Nxb5+ Kc6 33. Ka4 Rf4 34. Nc3 Rb7 35. g3 Rff7 36. Nb5 Bc7 37. Rc1+ Kd7 38. a6 |
| ECO B61 in 1993 play it! perez defeats black's scarella enrique in 97 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 7. Qd2 Rc8 8. Be2 h6 9. Bxf6 gxf6 10. Nf5 Qa5 11. Nd5 Qxd2+ 12. Kxd2 Kd8 13. Ng3 Rg8 14. Bh5 Be8 15. f4 Bg7 16. Nf5 e6 17. Nxd6 exd5 18. Nxc8 Kxc8 19. exd5 Nb4 20. c4 f5 21. g3 Na6 22. Rab1 Nc5 23. b4 Ne4+ 24. Ke3 Nc3 25. Rb3 Rf8 26. Kd3 Ne4 27. Re1 Ba4 28. Ra3 b5 29. c5 a5 30. bxa5 Nxc5+ 31. Ke2 b4 32. Re3 Bc3 33. Rc1 Kd7 34. Rcxc3 bxc3 35. Rxc3 Kd6 36. Bf3 Ra8 37. h3 Bb5+ 38. Ke3 Rxa5 39. a3 Bf1 40. h4 Ra4 41. g4 fxg4 42. Bxg4 Re4+ 43. Kf3 h5 44. Rxc5 hxg4+ 45. Kxe4 Kxc5 46. h5 Kc4 47. d6 Bd3+ 48. Ke3 Bf5 49. h6 |
| ECO B33 in 1992 play it! perez defeats black's lopez carlos in 75 moves | 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. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. c3 Bg7 13. O-O Bxd5 14. exd5 Ne7 15. Qh5 e4 16. Bc2 b4 17. cxb4 Bxb2 18. Rab1 Bxa3 19. Ba4+ Kf8 20. Rb3 a5 21. Rxa3 axb4 22. Qh6+ Kg8 23. Rg3+ Ng6 24. Bc6 Rxa2 25. h4 Ra3 26. h5 Qh4 27. Rxa3 bxa3 28. Rb1 Qd8 29. Ra1 Ne5 30. Rxa3 Ng4 31. Rg3 Qb6 32. Rxg4+ fxg4 33. Qg5+ Kf8 34. Qf6 g3 35. Qxd6+ Kg8 36. Qxg3+ Kf8 37. Qd6+ Kg8 38. h6 |
| ECO B33 in 1976 play it! perez defeats black's muniz l in 51 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 b5 10. Nd5 f5 11. exf5 Bxf5 12. Bd3 e4 13. Qe2 Qa5+ 14. c3 b4 15. Bxe4 bxa3 16. b4 Qd8 17. Bxf5 Be7 18. O-O Ra7 19. Rae1 Kf8 20. f4 h5 21. Rf3 h4 22. Re3 Rh6 23. Bc2 Qd7 24. Ba4 Bd8 25. Re8+ Kg7 26. Qc4 |
| ECO B98 in 1990 play it! perez defeats black's errera in 71 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 Nbd7 10. O-O-O Qc7 11. Be2 Rb8 12. Qg3 Rg8 13. Bxf6 Bxf6 14. Bb5 Kf8 15. Bxd7 Bxd7 16. f5 b5 17. fxe6 fxe6 18. e5 dxe5 19. Rhf1 Rc8 20. Nf3 b4 21. Nxe5 Be8 22. Rd3 bxc3 23. Rxc3 Qxc3 24. bxc3 Ke7 25. h4 Rf8 26. Re1 g5 27. c4 Bxe5 28. Qxe5 Rf6 29. hxg5 hxg5 30. Qxg5 Bg6 31. Rf1 Rf8 32. c5 Rf7 33. c6 Bf5 34. g4 Be4 35. c7 Bb7 36. Qc5+ |
| ECO B40 in 1958 play it! perez defeats black's bouwmeester hans in 45 moves | 1. e4 c5 2. Nf3 e6 3. d3 d5 4. Nbd2 g6 5. g3 Bg7 6. Bg2 Ne7 7. O-O Nbc6 8. Re1 Qc7 9. exd5 Nxd5 10. Nb3 Qe7 11. Ng5 Nb6 12. Ne4 c4 13. dxc4 Nxc4 14. Qe2 Nd6 15. Nxd6+ Qxd6 16. Bf4 Qe7 17. Rad1 Bd7 18. Bd6 Qf6 19. Nc5 Nd4 20. Rxd4 Qxd4 21. Rd1 Qxb2 22. Nxd7 Rc8 23. Nc5 |
| ECO B90 in 1989 play it! perez defeats black's almeida carlos in 73 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Be2 Be7 8. Qd2 b5 9. Bf3 e5 10. Nf5 O-O 11. Nd5 Bxf5 12. Nxf6+ Bxf6 13. exf5 Nd7 14. Bxa8 Qxa8 15. O-O Be7 16. a4 Rb8 17. axb5 Rxb5 18. b3 e4 19. Ra5 Rb8 20. Rfa1 Bf6 21. R1a2 Ne5 22. Rxa6 Qb7 23. h3 h6 24. Rb6 Qc8 25. Rxb8 Qxb8 26. Qd5 Qb4 27. Bd2 Qb6 28. Qxe4 Qc7 29. c4 h5 30. Be3 Nc6 31. Ra6 Nd8 32. Bb6 Qb7 33. Qxb7 Nxb7 34. Ra8+ Kh7 35. b4 d5 36. c5 d4 37. Kf1 |
| ECO B33 in 1976 play it! perez defeats black's muniz l in 51 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 b5 10. Nd5 f5 11. exf5 Bxf5 12. Bd3 e4 13. Qe2 Qa5+ 14. c3 b4 15. Bxe4 bxa3 16. b4 Qd8 17. Bxf5+ Be7 18. O-O Ra7 19. Rae1 Kf8 20. f4 h5 21. Rf3 h4 22. Re3 Rh6 23. Bc2 Qd7 24. Ba4 Bd8 25. Re8+ Kg7 26. Qc4 |
| ECO B34 in 1992 play it! perez defeats black's diaz fredy in 39 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 dxc6 6. Qxd8+ Kxd8 7. Bc4 e6 8. Nc3 Bg7 9. Bg5+ Bf6 10. O-O-O+ Ke7 11. h4 Bd7 12. e5 Bxg5+ 13. hxg5 b5 14. Be2 Rd8 15. Ne4 h6 16. Nf6 Nxf6 17. exf6+ Kf8 18. Rxh6 Kg8 19. Rxh8+ Kxh8 20. Bf3 |
| ECO B57 in 1992 play it! perez defeats black's becerra rivero j in 59 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Bb3 Be7 8. Be3 O-O 9. f3 Bd7 10. Qd2 Nxd4 11. Bxd4 b5 12. a4 b4 13. Ne2 a5 14. O-O-O e5 15. Be3 Qe8 16. Ng3 g6 17. Bh6 Bxa4 18. Nf5 Bxb3 19. Nxe7+ Qxe7 20. Bxf8 Rxf8 21. cxb3 Qe6 22. Qxd6 Qxb3 23. Kb1 Qa4 24. Rd3 Kg7 25. Rc1 Ra8 26. Rc6 Nh5 27. Qxe5+ Kh6 28. g4 f5 29. Rdd6 Qb5 30. Qxb5 |