| ECO A04 in 1992 play it! perez pietronave defeats white's yabiansky marcel in 74 moves | 1. Nf3 Nc6 2. d4 d6 3. d5 Nb8 4. g3 e5 5. dxe6 fxe6 6. Bg2 Nf6 7. O-O Be7 8. c4 O-O 9. Nc3 Nc6 10. e4 Qe8 11. h3 Kh8 12. Be3 e5 13. Nh4 Be6 14. b3 Ng8 15. Nf3 h6 16. Nd5 Qd7 17. Kh2 Nf6 18. Nh4 Kh7 19. Qd3 g6 20. Qd2 g5 21. Nf5 Nxe4 22. Bxe4 Bxf5 23. Bxf5+ Qxf5 24. Nxc7 Rac8 25. Nd5 Bf6 26. Rad1 e4 27. Nxf6+ Rxf6 28. Bd4 Re6 29. Rde1 Rf8 30. Qe3 g4 31. hxg4 Qxg4 32. f3 Qh5+ 33. Kg1 Rg8 34. Rf2 Rxg3+ 35. Kf1 Qh1+ 36. Ke2 exf3+ 37. Kd2 Qxe1+ |
| ECO A06 in 1991 play it! perez pietronave defeats white's pappa domingo in 32 moves | 1. Nf3 d5 2. d4 Nf6 3. g3 c5 4. c3 e6 5. Bg2 Bd6 6. O-O O-O 7. Nbd2 Nc6 8. dxc5 Bxc5 9. Qc2 e5 10. e4 d4 11. cxd4 Bxd4 12. Nxd4 Nxd4 13. Qd3 Bg4 14. f3 Bd7 15. Nc4 Bb5 16. Be3 Nxf3+ |
| ECO A04 in 1996 play it! perez pietronave defeats white's ferraro carlos in 110 moves | 1. Nf3 f5 2. c4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O d6 7. d3 Nc6 8. Rb1 e5 9. Nd5 h6 10. Nxf6+ Qxf6 11. Bd2 g5 12. Bc3 Qg6 13. Nd2 Qh5 14. e3 Qg6 15. Bd5+ Be6 16. Bxe6+ Qxe6 17. e4 f4 18. Qh5 Rf7 19. f3 Kh7 20. g4 Ne7 21. Qh3 Rh8 22. Qg2 h5 23. h3 Kg8 24. Qf2 c5 25. Kg2 hxg4 26. hxg4 Rf6 27. Rh1 Rfh6 28. Rbg1 Qd7 29. Rxh6 Rxh6 30. Rh1 Qa4 31. Rxh6 Bxh6 32. a3 Qc2 33. Qf1 Nc6 34. Qb1 Qa4 35. Qh1 Kg7 36. Qe1 Kf7 37. b3 Qa6 38. Kf2 Bf8 39. Qh1 Be7 40. Qh7+ Ke8 41. a4 Qb6 42. Qf5 Kd8 43. Qf7 a6 44. Qg8+ Kd7 45. Qd5 Qd8 46. Kg2 Kc7 47. Qf7 Kb8 48. Qh7 Ka7 49. Kf2 Qb6 50. Ke2 Qd8 51. Kd1 Qf8 52. Nb1 Bd8 53. Qg6 Qh8 54. Qh5 Qg7 55. Kc2 Bb6 |
| ECO A04 in 2000 play it! perez pietronave defeats white's del castillo gus in 64 moves | 1. Nf3 f5 2. b3 d6 3. Bb2 e5 4. e3 Nf6 5. c4 Be7 6. Be2 O-O 7. d4 e4 8. Nfd2 Qe8 9. Nc3 Qg6 10. g3 Nc6 11. Nf1 a5 12. a3 Bd7 13. Qc2 Na7 14. Nd2 c6 15. b4 b6 16. Nb3 axb4 17. axb4 d5 18. c5 bxc5 19. dxc5 Ng4 20. Na4 Nb5 21. Nb6 Rxa1+ 22. Bxa1 Be6 23. h3 Nxe3 24. fxe3 Qxg3+ 25. Kd1 Qxe3 26. Re1 Bh4 27. Rf1 d4 28. Bc4 Bxc4 29. Qxc4+ Kh8 30. Nd7 Na3 31. Qxd4 Qxb3+ 32. Ke2 Qc2+ |
| ECO A04 in 1992 play it! perez pietronave defeats white's lida garcia fern in 46 moves | 1. Nf3 Nc6 2. d4 d6 3. e4 Nf6 4. Nbd2 Bg4 5. c3 e5 6. Qc2 Be7 7. h3 Bh5 8. Bb5 O-O 9. Bxc6 bxc6 10. g4 Bg6 11. Nh4 Bxe4 12. Nxe4 Nxe4 13. Qxe4 Bxh4 14. dxe5 Re8 15. O-O Rxe5 16. Qxc6 Rb8 17. b3 Qe7 18. Qf3 f5 19. Be3 fxg4 20. Qxg4 Rf8 21. Rad1 Re4 22. Qh5 Rxe3 23. fxe3 Qxe3+ |
| ECO A13 in 1990 play it! perez pietronave defeats white's letelier martner in 46 moves | 1. c4 e6 2. Nf3 d5 3. g3 dxc4 4. Qa4+ Bd7 5. Qxc4 c5 6. Bg2 Nc6 7. O-O Nf6 8. d3 a6 9. Nc3 b5 10. Qf4 Rc8 11. Rd1 Be7 12. e4 O-O 13. e5 Ne8 14. h4 f6 15. Qe3 Qc7 16. exf6 Nxf6 17. Bh3 Nd4 18. Ng5 e5 19. Bxd7 Qxd7 20. Qxe5 Ng4 21. Qd5+ Qxd5 22. Nxd5 Bxg5 23. Bxg5 Rxf2 |
| ECO A13 in 1991 play it! perez pietronave defeats white's frank mario in 82 moves | 1. c4 e6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Be7 5. g3 O-O 6. Bg2 c5 7. e3 Nc6 8. O-O Qc7 9. d3 Rd8 10. Qe2 e5 11. cxd5 Nxd5 12. a3 Be6 13. Nbd2 Nb6 14. Rfd1 f6 15. Nc4 Rd7 16. Nfd2 Rad8 17. Ne4 a6 18. Rac1 Nc8 19. a4 b5 20. axb5 axb5 21. Na3 Bxb3 22. Rd2 Qb6 23. f4 f5 24. fxe5 fxe4 25. Bxe4 c4 26. d4 Nxe5 27. Qh5 Ng6 28. Nxb5 Qf6 29. h4 Qe6 30. Bf5 Qxe3+ 31. Rf2 Rb7 32. Bxc8 Rxb5 33. Qxb5 Qxg3+ 34. Rg2 Qe3+ 35. Kh1 Rxc8 36. Qf5 Rf8 37. Qd5+ Kh8 38. Rc3 Rf1+ 39. Kh2 Qf4+ 40. Rcg3 Qxh4+ 41. Rh3 Qxh3+ |
| ECO A13 in 1990 play it! perez pietronave defeats white's pingas blas mari in 112 moves | 1. c4 e6 2. d4 d5 3. Nc3 c5 4. cxd5 cxd4 5. Qa4+ Bd7 6. Qxd4 exd5 7. Qxd5 Nc6 8. a3 Nf6 9. Qd1 Bc5 10. e3 Qe7 11. Nf3 O-O-O 12. Qc2 Kb8 13. Be2 g5 14. Nxg5 Rhg8 15. Nh3 Bd6 16. Bf1 Nd4 17. Qd1 Bg4 18. Qxd4 Be5 19. Qa4 Bxc3+ 20. bxc3 Rd1+ 21. Qxd1 Bxd1 22. Kxd1 Qe4 23. Nf4 Rd8+ 24. Bd2 Ng4 25. Ke1 Qc2 26. Bd3 Rxd3 27. Nxd3 Qxd3 28. Rd1 Ne5 29. f3 Nc4 30. e4 Ne3 31. Bxe3 Qxe3+ 32. Kf1 Qxc3 33. Kf2 Qb2+ 34. Kg3 Qxa3 35. Rd7 Qb3 36. Rc1 a5 37. Rcc7 Qb6 38. Rc2 a4 39. Rd5 a3 40. Rdd2 Qb3 41. Kf4 Ka7 42. g4 Ka6 43. h4 b5 44. Rc6+ Ka5 45. Rc7 Qb2 46. Ra7+ Kb4 47. Rxb2+ axb2 48. Rxf7 b1=Q 49. Rxh7 Kc3 50. g5 b4 51. h5 b3 52. h6 b2 53. Rc7+ Kd4 54. h7 Qc1+ 55. Kf5 Qh1 56. Rd7+ Ke3 |
| ECO A10 in 2000 play it! perez pietronave defeats white's lopresti juan ca in 109 moves | 1. c4 f5 2. g3 Nf6 3. Bg2 g6 4. d4 Bg7 5. Nh3 Nc6 6. O-O O-O 7. Nc3 d6 8. b3 Nxd4 9. Qxd4 Ne4 10. Qd5+ e6 11. Qd3 Nxc3 12. Bb2 Ne4 13. Bxg7 Kxg7 14. Bxe4 fxe4 15. Qxe4 e5 16. Qg2 Qd7 17. Ng5 Qg4 18. Nf3 Bd7 19. h3 Qxh3 20. Qxh3 Bxh3 21. Rfd1 Bg4 22. Kg2 Rf6 23. Ng5 Raf8 24. f3 Be6 25. Nh3 Bxh3+ 26. Kxh3 e4 27. f4 g5 28. e3 gxf4 29. gxf4 Rh6+ 30. Kg3 Kf6 31. Rh1 Rg8+ 32. Kf2 Rhg6 33. Rh2 Rg3 34. Rh6+ Kf5 35. Rh5+ Ke6 36. Rh6+ Kd7 37. Rxh7+ Kc6 38. Rh2 Rf3+ 39. Ke2 Rgg3 40. Kd2 Rxe3 41. Rf1 Rd3+ 42. Kc2 Rc3+ 43. Kb2 Rcf3 44. Re1 Rxf4 45. Rhe2 d5 46. cxd5+ Kxd5 47. Rd1+ Rd3 48. Rh1 e3 49. Rh3 Kd4 50. Kc2 c5 51. Rg3 b5 52. a3 a5 53. Rh3 a4 54. bxa4 bxa4 55. Kb2 |
| ECO B32 in 2006 play it! perez pietronave defeats white's lo presti robert in 88 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 Qg6 9. Nc3 Nge7 10. h4 h5 11. Be3 d5 12. Nxd5 Nxd5 13. Qxd5 Be6 14. Qc5 Qxe4 15. f3 Qb4+ 16. Kf2 Qxb2 17. Bd3 Qb4 18. Rab1 Qxc5 19. Bxc5 O-O-O 20. Rb2 Rd5 21. Bb6 Re8 22. Rhb1 Re7 23. Kg1 Red7 24. Kh2 g6 25. Be4 Rd1 26. Bxc6 bxc6 27. Rxd1 Rxd1 28. Be3 Ra1 29. Rb6 Rxa2 30. Rxc6+ Kd7 31. Rc5 Kd6 32. Rc3 Bf5 33. Bh6 Bxc2 34. Bg7 e4 35. f4 Bd3 36. Kg1 Kd5 37. Rc7 f5 38. Rd7+ Kc4 39. Rd6 Kb3 40. Re6 Rc2 41. Rxg6 e3 42. Rd6 Rc1+ 43. Kh2 e2 44. Rxd3+ Kc4 |
| ECO B23 in 1990 play it! perez pietronave defeats white's bianchi guillerm in 106 moves | 1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 g6 5. Bc4 Nge7 6. O-O d5 7. Bb5 Bg7 8. d3 O-O 9. Kh1 Nd4 10. Ba4 Qa5 11. Bd2 Nxf3 12. Qxf3 Bxc3 13. Bxc3 Qxa4 14. Bf6 Re8 15. Qh3 h5 16. Qh4 Kf8 17. g4 Ng8 18. gxh5 dxe4 19. hxg6 fxg6 20. Qh8 Qd7 21. Rg1 Qf7 22. Rxg6 Qxg6 23. Rg1 Qf7 24. Rg7 e5 25. Qh7 Qd5 26. c4 Nxf6 27. Qh8+ Qg8 28. Rxg8+ Nxg8 29. dxe4 exf4 30. Qh4 Re7 31. Qxf4+ Rf7 32. Qd6+ Kg7 33. Kg2 Bd7 34. Qxc5 Bc6 35. Qe5+ Nf6 36. Qg5+ Kf8 37. Qc5+ Kg8 38. Kg1 Rg7+ 39. Kf1 Nxe4 40. Qh5 Rf8+ 41. Ke2 Nf6 42. Qh3 Re8+ 43. Kd3 Rd8+ 44. Kc3 Ne4+ 45. Kb4 Ng5 46. Qh4 Rd2 47. Ka3 a5 48. Qf4 Rd3+ 49. b3 Ne4 50. Qb8+ Kh7 51. Qe5 Nd6 52. Qf4 Kg8 53. Qh4 Rg2 |
| ECO C45 in 1993 play it! perez pietronave defeats white's albarracin omar in 96 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 b6 8. Qd3 Ne5 9. Qe2 Nxc4 10. Qxc4 O-O 11. Nd2 a5 12. Qe2 Ng6 13. N2f3 Ba6 14. Qd2 Ne5 15. Nxe5 Qxe5 16. Qc2 Rfe8 17. O-O-O Qxe4 18. Qxe4 Rxe4 19. Nc2 Bxe3+ 20. Nxe3 d6 21. Nd5 Rc8 22. Rhe1 Rxe1 23. Rxe1 Kf8 24. Re7 Bb7 25. Rxc7 Rxc7 26. Nxc7 Bxg2 27. Nb5 Ke7 28. Kd2 g5 29. Nd4 Be4 30. Ke3 f5 31. f3 Bb1 32. f4 h6 33. a3 Be4 34. b4 Kf6 35. c4 g4 36. bxa5 bxa5 37. Ne2 Bf3 38. Ng1 Bc6 39. Ne2 h5 40. Kd4 h4 41. c5 dxc5+ 42. Kxc5 Bg2 43. Kb6 g3 44. hxg3 h3 45. g4 fxg4 46. Ng3 h2 47. Kxa5 h1=Q 48. Nxh1 Bxh1 |
| ECO C40 in 1993 play it! perez pietronave defeats white's urchipia carlos in 94 moves | 1. e4 e5 2. Nf3 f5 3. d4 fxe4 4. Nxe5 Nf6 5. Be2 d6 6. Nc4 Be7 7. O-O O-O 8. Bg5 Nc6 9. c3 Nd5 10. Bxe7 Qxe7 11. Ne3 Nxe3 12. fxe3 Rxf1+ 13. Bxf1 Qg5 14. Qd2 Bd7 15. Na3 Rf8 16. Be2 Bh3 17. Bc4+ d5 18. Bxd5+ Qxd5 19. gxh3 Ne5 20. Qe2 Nd3 21. Rf1 Qg5+ 22. Kh1 Rxf1+ 23. Qxf1 Qxe3 24. Qf5 Qf3+ 25. Qxf3 exf3 26. Nc4 Nf2+ 27. Kg1 Nxh3+ 28. Kf1 Nf4 29. Ne5 g5 30. Kf2 Kg7 31. Kxf3 Kf6 32. Ke4 Ne6 33. b4 h5 34. a4 g4 35. a5 Ng5+ 36. Kf4 Nh3+ 37. Ke4 Kg5 38. c4 Ng1 39. d5 h4 40. c5 g3 41. h3 g2 42. d6 cxd6 43. cxd6 Kf6 44. Ng4+ Ke6 45. Ne3 Nxh3 46. Nxg2 Ng5+ 47. Kf4 h3 |
| ECO C40 in 1997 play it! perez pietronave defeats white's albarran gustavo in 42 moves | 1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Nc3 Qg6 7. f3 Be7 8. Bf4 exf3 9. Qxf3 Nc6 10. Bd3 Bf5 11. Bxf5 Qxf5 12. Ne3 Qg6 13. O-O-O Nf6 14. Ned5 O-O 15. Rhe1 Nxd5 16. Qxd5+ Kh8 17. Qe4 Rxf4 18. Qxg6 hxg6 19. Nd5 Rf7 20. Nxc7 Bg5+ 21. Kb1 Rxc7 |
| ECO C40 in 1999 play it! perez pietronave defeats white's acosta mariano in 90 moves | 1. e4 e5 2. Nf3 f5 3. Nxe5 Nc6 4. Nxc6 dxc6 5. d3 Bc5 6. Nc3 Nf6 7. Be2 O-O 8. O-O fxe4 9. Nxe4 Nxe4 10. dxe4 Qh4 11. Bf3 Be6 12. Qe2 b5 13. b3 Rf7 14. Be3 Bd6 15. g3 Qf6 16. Bg2 a5 17. f4 Qc3 18. Qd2 Qxd2 19. Bxd2 Bc5+ 20. Kh1 Rd7 21. Bc3 b4 22. Be5 Bg4 23. Bf3 Bxf3+ 24. Rxf3 Rad8 25. Rd3 Rxd3 26. cxd3 Rxd3 27. Bxc7 a4 28. bxa4 Bd4 29. Rc1 Rc3 30. Rb1 c5 31. a5 Ra3 32. e5 Kf7 33. f5 Rxa2 34. g4 Ra3 35. e6+ Ke7 36. Kg2 b3 37. Bb6 Ra2+ 38. Kf3 b2 39. Ke2 Ra1 40. Bxc5+ Ke8 41. Bxd4 Rxb1 42. Bxg7 Ke7 43. Bc3 Rh1 44. Bb4+ Ke8 45. f6 Rf1 |
| ECO C75 in 1991 play it! perez pietronave defeats white's marcussi bartolo in 54 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nge7 7. d4 Ng6 8. h3 Be7 9. Be3 O-O 10. Nbd2 Qe8 11. d5 Nd4 12. cxd4 Bxa4 13. b3 Bd7 14. Nc4 f5 15. dxe5 fxe4 16. Nfd2 Nxe5 17. Nxe5 dxe5 18. Nxe4 Qg6 19. Ng3 Bb5 20. Re1 Bb4 21. Bd2 Bc5 22. Be3 Bb4 23. Bd2 Rxf2 24. Kxf2 Rf8+ 25. Kg1 Qxg3 26. Re2 Bc5+ 27. Kh1 Bxe2 |
| ECO C63 in 1994 play it! perez pietronave defeats white's scuderi hugo in 90 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 fxe4 5. dxe4 Nf6 6. O-O Bc5 7. Nc3 d6 8. Bg5 O-O 9. Nd5 Bg4 10. Bc4 Kh8 11. Nxf6 gxf6 12. Bh6 Nd4 13. c3 Nxf3+ 14. gxf3 Bh3 15. Kh1 Bxf1 16. Qxf1 Rg8 17. Bxg8 Qxg8 18. Qg2 Qf7 19. Rg1 Rg8 20. Qxg8+ Qxg8 21. Rxg8+ Kxg8 22. Kg2 Kf7 23. a4 Kg6 24. Bd2 a6 25. b4 Ba7 26. a5 f5 27. c4 f4 28. Be1 c6 29. Kf1 Kg5 30. Kg2 Kf6 31. Kf1 Bd4 32. Bd2 d5 33. c5 Kg5 34. Kg2 Kf6 35. Kf1 Bb2 36. exd5 cxd5 37. Ke2 Bd4 38. Be1 Ke6 39. Kd3 Kd7 40. Kc2 Kc6 41. Kb3 Kb5 42. h3 h6 43. Kc2 Kc4 44. Kc1 Kd3 45. Kd1 e4 |
| ECO C68 in 2000 play it! perez pietronave defeats white's benko francisco in 62 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 h5 7. d3 Bxf3 8. Qxf3 Qd7 9. Be3 O-O-O 10. Nd2 f6 11. Nb3 g5 12. Qe2 Be7 13. Rfd1 g4 14. h4 f5 15. d4 fxe4 16. dxe5 Qf5 17. Nd4 Qg6 18. g3 Nh6 19. Qc4 Rd5 20. Qb3 Rxe5 21. Bf4 Rd5 22. c4 Rd7 23. Qc2 Rhd8 24. Bxh6 Rxd4 25. Rxd4 Rxd4 26. Be3 Rd3 27. c5 Qf5 28. b4 Bxh4 29. gxh4 g3 30. Re1 Qh3 31. f3 exf3 |
| ECO C45 in 1991 play it! perez pietronave defeats white's ginzburg maximil in 52 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. g3 d5 8. Bg2 dxe4 9. Nd2 Bf5 10. Nxe4 Bxe4 11. Bxe4 Rd8 12. Qa4 Bxd4 13. cxd4 Qe6 14. Bg2 Rxd4 15. Qa3 O-O 16. O-O Rd7 17. Bc5 Rfd8 18. Rae1 Qf6 19. Re4 Ng6 20. Rfe1 h6 21. f4 Rd2 22. R4e2 Rxe2 23. Rxe2 Rd1+ 24. Kf2 Nce5 25. Be4 Nxf4 26. Be7 Nfd3+ |
| ECO C29 in 1993 play it! perez pietronave defeats white's ravazzoli omar in 48 moves | 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Bb4 6. dxe4 Qh4+ 7. Ke2 Bxc3 8. bxc3 Bg4+ 9. Nf3 dxe4 10. Qd4 Bh5 11. Be3 Nc6 12. Qc5 exf3+ 13. gxf3 Qe4 14. Kd2 O-O-O+ 15. Bd3 Qxf3 16. Rhe1 Rd5 17. Qa3 Rhd8 18. Rab1 Bg6 19. Qb3 b6 20. Qc4 Bxd3 21. cxd3 Rxd3+ 22. Qxd3 Qg2+ 23. Re2 Rxd3+ 24. Kxd3 Qg6+ |
