| ECO A07 in 1999 play it! usachyi mark defeats white's brauner rudolf in 94 moves | 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. h3 Bxf3 5. Bxf3 Nf6 6. d3 e6 7. c3 Nbd7 8. Nd2 Qc7 9. Qc2 Bd6 10. d4 c5 11. Nb3 Rc8 12. Bg5 O-O 13. Bxf6 Nxf6 14. e3 Rfe8 15. Nxc5 Bxc5 16. dxc5 Qxc5 17. O-O b5 18. Rac1 Rc6 19. Rfd1 Rec8 20. Qd3 Qc4 21. a3 a6 22. Rd2 g6 23. Re1 Qxd3 24. Rxd3 Rc4 25. Kg2 Kf8 26. Ra1 Ke7 27. g4 h6 28. Bd1 g5 29. f3 Rb8 30. Bb3 Rc7 31. Rh1 a5 32. Rd2 b4 33. axb4 axb4 34. cxb4 Rxb4 35. Bd1 Rcb7 36. b3 Rc7 37. h4 gxh4 38. Kf2 h5 39. g5 Nd7 40. f4 Nc5 41. Bc2 Nxb3 42. Bxb3 Rxb3 43. f5 Rc4 44. f6+ Kd6 45. Ra2 Rg4 46. Ra7 Rb2+ 47. Kf3 Rg3+ |
| ECO A06 in 2007 play it! usachyi mark defeats white's schieferstein m in 122 moves | 1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. d4 c6 5. Nbd2 Ngf6 6. e3 e6 7. Be2 h6 8. O-O Bd6 9. c4 O-O 10. a4 Qe7 11. Ne5 Bf5 12. a5 a6 13. Ndf3 Ne4 14. Nd2 Rfd8 15. Nxe4 Bxe4 16. Nxd7 Rxd7 17. Bd3 Bxd3 18. Qxd3 Rad8 19. e4 dxc4 20. Qxc4 Qh4 21. e5 Bc7 22. Bc3 Rd5 23. f4 g6 24. b4 Bb8 25. Rad1 Ba7 26. Rd2 h5 27. Rff2 R8d7 28. Rf1 Qg4 29. Qd3 Kg7 30. Qe3 Qh4 31. Re1 Qg4 32. Red1 h4 33. h3 Qh5 34. Kf1 Qh8 35. Rd3 Bb8 36. Be1 Bc7 37. Bf2 Bd8 38. Qe2 Be7 39. Be1 Qd8 40. Bc3 Rb5 41. Qd2 Rdd5 42. g4 hxg3 43. Rxg3 Qh8 44. Kg2 Kf8 45. h4 Ke8 46. Rg4 Qf8 47. Rh1 Bxb4 48. h5 Bxc3 49. Qxc3 gxh5 50. Rxh5 Rxa5 51. Rgh4 Ra2+ 52. Kf1 Rb5 53. Rh8 Rb1+ 54. Qe1 Rxe1+ 55. Kxe1 Rb2 56. Rxf8+ Kxf8 57. f5 exf5 58. Rf4 Ke7 59. Rxf5 a5 60. e6 Kxe6 61. Rxa5 Rb4 |
| ECO A07 in 1993 play it! usachyi mark defeats white's erhart helmut in 84 moves | 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 5. d3 e5 6. e4 dxe4 7. dxe4 Ngf6 8. Nbd2 Qc7 9. h3 Bh5 10. Qe2 Be7 11. g4 Bg6 12. Nh4 O-O-O 13. Nf5 Bf8 14. a4 Nc5 15. b4 Ne6 16. b5 Nf4 17. Qe3 cxb5 18. Nb3 Bxf5 19. exf5 Nxg2 20. Kxg2 bxa4 21. Nd2 Qc6+ 22. f3 Bc5 23. Qe2 Bd4 24. Ra2 h5 25. Qc4 Qxc4 26. Nxc4 b5 27. Nd2 Nd5 28. Ne4 Nf4+ 29. Bxf4 exf4 30. c3 Be3 31. c4 hxg4 32. hxg4 Rh6 33. Rh1 Rxh1 34. Kxh1 a6 35. Kg2 Kb7 36. Kf1 Kb6 37. Ke2 Rd4 38. cxb5 axb5 39. Ng3 Rd7 40. Ne4 Ka5 41. Nc3 Kb4 42. Nd1 a3 |
| ECO A06 in 1992 play it! usachyi mark defeats white's pachman ludek in 52 moves | 1. Nf3 d5 2. e3 c5 3. b3 Nc6 4. Bb5 f6 5. c4 d4 6. b4 e5 7. bxc5 Bxc5 8. Nxd4 Bxd4 9. exd4 Qxd4 10. Nc3 Be6 11. Rb1 Nge7 12. O-O O-O 13. Ba3 Rfd8 14. Bxc6 Nxc6 15. c5 Rd7 16. Re1 Rad8 17. Qf3 Qxd2 18. Ne4 Qd3 19. Nd6 Qxf3 20. gxf3 Nd4 21. Re3 Bd5 22. Kg2 g5 23. h3 h5 24. Ne4 Kf7 25. Rd3 g4 26. hxg4 hxg4 |
| ECO A20 in 2001 play it! usachyi mark defeats white's frey walter in 62 moves | 1. c4 e5 2. g3 Nf6 3. Bg2 Bc5 4. Nc3 Nc6 5. Nf3 O-O 6. O-O d6 7. d3 Re8 8. Bg5 h6 9. Bxf6 Qxf6 10. Ne4 Qe7 11. Nxc5 dxc5 12. e3 Be6 13. Qb3 Rab8 14. Qc3 Qd6 15. Rfd1 Rbd8 16. Rd2 Bg4 17. Rad1 Qf6 18. Ne1 Bxd1 19. Rxd1 e4 20. Qxf6 gxf6 21. a3 Na5 22. b4 cxb4 23. axb4 Nxc4 24. Rc1 exd3 25. Nxd3 Rxd3 26. Rxc4 Rd1+ 27. Bf1 c6 28. Kg2 Re5 29. Be2 Rd2 30. Bg4 f5 31. Bf3 Rxe3 |
| ECO A30 in 1960 play it! usachyi mark defeats white's rotshtein efim in 86 moves | 1. c4 c5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. d4 Na6 7. Nc3 d6 8. b3 Bg4 9. Bb2 Qd7 10. Re1 Rab8 11. Qd2 Rfd8 12. d5 Nc7 13. e4 Bxf3 14. Bxf3 Ng4 15. Bg2 b5 16. Bh3 bxc4 17. Qe2 h5 18. f3 Bd4+ 19. Kg2 f5 20. bxc4 Ne3+ 21. Kh1 Nxc4 22. Qxc4 Rxb2 23. Rac1 Rdb8 24. exf5 Rf2 25. Ne4 Rb4 26. Qd3 Rxa2 27. Rb1 Qb5 28. Qxb5 Nxb5 29. fxg6 Na3 30. Rxb4 cxb4 31. Ng5 b3 32. Bf5 Ra1 33. Rxa1 Bxa1 34. Ne4 a5 35. h4 Nc4 36. g4 Kg7 37. Ng5 Ne3 38. Ne6+ Kh8 39. Be4 a4 40. gxh5 Bg7 41. Ng5 a3 42. Nf7+ Kg8 43. h6 a2 |
| ECO A15 in 1993 play it! usachyi mark defeats white's dizdar selim in 98 moves | 1. c4 Nf6 2. g3 e5 3. Bg2 Bc5 4. e3 Nc6 5. Nc3 O-O 6. Nge2 Re8 7. d3 a6 8. O-O d6 9. Nd5 Nxd5 10. cxd5 Ne7 11. d4 Bb6 12. dxe5 dxe5 13. b3 Nf5 14. Bb2 Nd6 15. a4 a5 16. e4 Qg5 17. Kh1 Qh5 18. Nc3 Bg4 19. f3 Bd7 20. f4 Bg4 21. Qc2 Bd4 22. Rae1 Ra6 23. Nb5 Nxb5 24. axb5 Rh6 25. h4 Bxb2 26. Qxb2 exf4 27. Rxf4 g5 28. Rf6 gxh4 29. Rxh6 Qxh6 30. Qc1 Qxc1 31. Rxc1 h3 32. Bf1 Rxe4 33. Kh2 Re7 34. Rc2 Kf8 35. b6 cxb6 36. Bb5 Re5 37. Rd2 Ke7 38. d6+ Kd8 39. Bc4 Be6 40. Bxe6 fxe6 41. Kxh3 Kd7 42. Kh4 Rd5 43. Rf2 Kxd6 44. Rf7 Rb5 45. Rxh7 Rxb3 46. g4 a4 47. g5 Ke5 48. Rf7 a3 49. Rxb7 Rb4+ |
| ECO B22 in 1995 play it! usachyi mark defeats white's atlas dimitry in 56 moves | 1. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Nf3 Qb6 6. Be2 f6 7. O-O Bd7 8. Re1 fxe5 9. Nxe5 Nxe5 10. dxe5 Ne7 11. Qc2 O-O-O 12. Nd2 Nc6 13. Nf3 h6 14. Rb1 Qc7 15. Bb5 g5 16. h3 a6 17. Bf1 Be7 18. Be3 Rdg8 19. b4 h5 20. bxc5 g4 21. Nd4 Nxe5 22. Bf4 Nf3+ 23. Nxf3 Qxf4 24. Ne5 gxh3 25. c6 Bxc6 26. Rb6 Bc5 27. Rxc6+ bxc6 28. Nd3 Qf3 |
| ECO C85 in 1976 play it! usachyi mark defeats white's polak j in 58 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 dxc6 7. d3 Bd6 8. Nbd2 c5 9. Nc4 Nd7 10. Bd2 O-O 11. Bc3 Re8 12. b3 f6 13. Nh4 Nf8 14. g4 Ne6 15. Nf5 Bf8 16. h4 Nf4 17. h5 g6 18. hxg6 hxg6 19. Ng3 Bh6 20. Ne3 Kf7 21. Ne2 Rh8 22. Nxf4 Bxf4 23. Nd5 Rh1+ 24. Kg2 Rh2+ 25. Kf3 Qh8 26. Nxf4 exf4 27. Kxf4 Qh6+ 28. Kf3 Qh3+ 29. Ke2 Bxg4+ |
| ECO C45 in 2001 play it! usachyi mark defeats white's lingen raimund in 82 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 Ne5 8. Qe2 Qg6 9. O-O O-O 10. Nf5 Nxf5 11. exf5 Qb6 12. Bxc5 Qxc5 13. Nd2 d5 14. Nb3 Qd6 15. f4 Nc6 16. Bd3 Ne7 17. Qh5 Nxf5 18. Bxf5 g6 19. Bxg6 hxg6 20. Qh6 Re8 21. Rad1 Bg4 22. Rd3 Qb6+ 23. Nd4 c5 24. Nf3 c4+ 25. Rd4 Bxf3 26. Rxf3 Qxb2 27. h4 Re2 28. Qg5 Qc1+ 29. Kh2 Re1 30. Rxd5 Rh1+ 31. Kg3 Qe1+ 32. Rf2 Qxc3+ 33. Rf3 Qe1+ 34. Rf2 Rf1 35. Rd8+ Kg7 36. Rxa8 Qxf2+ 37. Kh2 Qxf4+ 38. Qxf4 Rxf4 39. Kg3 Rf1 40. Rxa7 c3 41. Rxb7 c2 |
| ECO C45 in 2001 play it! usachyi mark defeats white's zschorsch peter in 98 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Bc4 Nf6 7. Nc3 d6 8. Bg5 h6 9. Bh4 Ne5 10. Be2 g5 11. Bg3 Be6 12. Bxe5 dxe5 13. Qxd8+ Rxd8 14. O-O Ke7 15. Rad1 c6 16. Rxd8 Rxd8 17. Rd1 Bd4 18. Nxd4 exd4 19. e5 Ng4 20. Ne4 Nxe5 21. Nc5 b6 22. Nxe6 Kxe6 23. Kf1 f5 24. h3 c5 25. b3 Kf6 26. Rd2 Rd7 27. a3 g4 28. hxg4 fxg4 29. Kg1 Kg5 30. Bf1 h5 31. Rd1 h4 32. Bb5 Re7 33. Bf1 g3 34. Be2 Ng4 35. Bxg4 Kxg4 36. f3+ Kf4 37. Kf1 Re3 38. Rd2 h3 39. gxh3 Kxf3 40. a4 Kf4 41. Kg1 Kg5 42. Kf1 Kh4 43. Kg2 Re1 44. b4 Re3 45. a5 Re1 46. axb6 axb6 47. bxc5 bxc5 48. c3 dxc3 49. Rc2 Re3 |
| ECO C78 in 2000 play it! usachyi mark defeats white's kemeny matthias in 96 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. h3 Na5 9. d4 exd4 10. e5 dxe5 11. Nxe5 O-O 12. Bd2 b4 13. a3 Bb7 14. Ba4 c5 15. axb4 cxb4 16. c3 bxc3 17. bxc3 Bc5 18. Bg5 Qd5 19. Nf3 Ne4 20. Bh4 dxc3 21. Qxd5 Bxd5 22. Bc2 Bb4 23. Rxe4 Bxe4 24. Bxe4 Nb3 25. Ra4 Nc5 26. Rxb4 Nxe4 27. Rxe4 c2 28. Re1 cxb1=Q 29. Rxb1 Rfb8 30. Ra1 f6 31. Bg3 Rb7 32. Nd4 Kf7 33. Kf1 Ke7 34. Nf5+ Ke6 35. Nd6 Rb4 36. Re1+ Kd5 37. Ne8 Ra7 38. Nc7+ Kc4 39. Rc1+ Kd3 40. Ke1 Re4+ 41. Kd1 Rc4 42. Rxc4 Kxc4 43. Kc2 a5 44. Kb2 Rb7+ 45. Ka3 Rb1 46. Ne8 Kc3 47. Ka2 Rb2+ 48. Ka1 Kb3 |
| ECO C78 in 1994 play it! usachyi mark defeats white's seibold theo in 60 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d3 d6 9. Nc3 Bg4 10. h3 Bh5 11. Be3 Qd7 12. Nd5 Nxd5 13. Bxd5 Bxf3 14. Qxf3 Rad8 15. c3 Nb8 16. d4 c6 17. Bb3 Bf6 18. Rad1 Qe7 19. Re2 Nd7 20. Qg4 c5 21. Bd5 exd4 22. cxd4 cxd4 23. Bxd4 Bxd4 24. Rxd4 Ne5 25. Qg3 Rc8 26. Red2 Rc1+ 27. Kh2 a5 28. Qa3 b4 29. Qe3 Qh4 30. Qe2 Qf4+ |
| ECO C50 in 1999 play it! usachyi mark defeats white's weller friedhelm in 95 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d3 Nf6 5. a3 O-O 6. O-O d6 7. Nc3 h6 8. h3 Be6 9. Nd5 Qd7 10. Kh2 Nd8 11. Qe2 Nxd5 12. exd5 Bf5 13. Ng1 Bf6 14. c3 Re8 15. Be3 Bg5 16. Qd2 Bxe3 17. fxe3 Bg6 18. d4 Qe7 19. Rae1 f5 20. Bd3 e4 21. Bc2 Rf8 22. Qf2 Rf6 23. Ne2 Bf7 24. c4 c6 25. Nc3 Bg6 26. Qh4 Rf7 27. Qxe7 Rxe7 28. g4 fxg4 29. hxg4 Nf7 30. Kg3 Ng5 31. Rf4 Rae8 32. b4 Bf7 33. dxc6 bxc6 34. Bb3 Rb8 35. d5 cxd5 36. cxd5 Be8 37. Rd1 Rc8 38. Ne2 Nf3 39. a4 a6 40. Nd4 Nxd4 41. Rxd4 Rc3 42. Rdxe4 Rxe4 43. Rxe4 Bg6 44. Re6 Bf7 45. Ba2 Bxe6 46. dxe6 Kf8 47. Kf4 Ra3 48. Bd5 |
| ECO C29 in 2000 play it! usachyi mark defeats white's nau guenter in 46 moves | 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 6. d4 O-O 7. Bd3 f5 8. exf6 Bxf6 9. O-O Nc6 10. Be3 Re8 11. Nxe4 dxe4 12. Bc4+ Be6 13. Bxe6+ Rxe6 14. d5 Rd6 15. dxc6 Rxd1 16. Raxd1 Qc8 17. Nd4 bxc6 18. Nxc6 Qb7 19. Nd4 Qxb2 20. Rf2 Qxa2 21. Nb3 Qa4 22. Rfd2 Qc6 23. Nc5 Bg5 |
| ECO C23 in 1997 play it! usachyi mark defeats white's richter kurt in 80 moves | 1. e4 e5 2. Bc4 Nc6 3. Nc3 Nf6 4. d3 Bb4 5. Bd2 O-O 6. Nf3 d6 7. h3 Na5 8. Qe2 Nxc4 9. dxc4 Be6 10. a3 Bxc3 11. Bxc3 Nd7 12. b3 f5 13. exf5 Bxf5 14. O-O-O Qf6 15. Kb2 Nc5 16. Nd2 Qg6 17. Nf3 Be4 18. Rhg1 Qf5 19. Bb4 Bxf3 20. gxf3 Ne6 21. Rg3 Nd4 22. Qd2 Kh8 23. Rg5 Qf4 24. Qxf4 Rxf4 25. c5 dxc5 26. Bxc5 Nxf3 27. Rg3 Rf7 28. Rg4 b6 29. Be3 h6 30. h4 Kh7 31. a4 a5 32. Kc3 Re8 33. Re4 Kg6 34. Rh1 Kf5 35. Rc4 c5 36. Rh3 e4 37. Rxf3+ exf3 38. Rf4+ Ke6 39. Re4+ Kd7 40. Rg4 Rxe3+ |
| ECO C78 in 1960 play it! usachyi mark defeats white's poliak evsey in 82 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. a4 Bb7 8. d3 O-O 9. Nc3 b4 10. Nd5 Nxd5 11. Bxd5 d6 12. a5 Rb8 13. Be3 Nxa5 14. Bxb7 Nxb7 15. Rxa6 f5 16. Qa1 Qd7 17. Qa2+ Kh8 18. Qd5 Qc8 19. Rfa1 Nd8 20. Ra8 c6 21. Rxb8 Qxb8 22. Qc4 f4 23. Bd2 c5 24. Ra6 Qb7 25. Qa2 Nc6 26. Qa4 Rc8 27. h3 h6 28. Be1 Bd8 29. Nd2 Ba5 30. Rxc6 Qxc6 31. Qb3 Bc7 32. Qf7 Qe8 33. Qb3 Ra8 34. Kh2 Ra1 35. Nf3 Qg8 36. c4 Qe8 37. Kg1 Qa4 38. Qxa4 Rxa4 39. b3 Ra3 40. Nd2 Bd8 41. f3 Ra1 |
| ECO C44 in 2000 play it! usachyi mark defeats white's schuette andreas in 120 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bd7 8. Bxc6 bxc6 9. O-O Bc5 10. Kh1 Qh4 11. Be3 O-O 12. Kg1 Bb6 13. f3 Ng5 14. Qe1 Qh5 15. Nd2 c5 16. Ne2 Ne6 17. f4 Nd4 18. Ng3 Qh4 19. Rc1 Rae8 20. c3 Nc6 21. Nf3 Qd8 22. Qd2 Bg4 23. Rcd1 d4 24. cxd4 cxd4 25. Bf2 f6 26. Rc1 Qd5 27. exf6 Rxf6 28. Ne1 h5 29. h3 Bc8 30. Nd3 Ba6 31. Rfe1 Rxe1+ 32. Rxe1 Ba5 33. b4 Bb6 34. Ne5 Bb7 35. Ne4 Nxe5 36. fxe5 Rg6 37. Bh4 d3+ 38. Kh1 Qd4 39. Bf2 Qxe5 40. Bxb6 Bxe4 41. Rxe4 Qxe4 42. Bxa7 Qe2 43. Qxe2 dxe2 44. Bf2 Ra6 45. Be1 Rxa2 46. Kg1 Kf7 47. Kf2 Ke6 48. Bc3 g6 49. Ke1 Kd5 50. Bd2 Kc4 51. Kxe2 h4 52. Ke1 Rxd2 53. Kxd2 Kxb4 54. Ke3 c5 55. Kf4 c4 56. Kg5 c3 57. Kxg6 c2 58. Kh5 c1=Q 59. Kxh4 Qh6+ 60. Kg4 Qg6+ |
| ECO C35 in 1999 play it! usachyi mark defeats white's kemmerzell hans by checkmate in 50 moves | 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Nf6 5. e5 Ng4 6. O-O d5 7. exd6 Qxd6 8. d4 O-O 9. c3 Nc6 10. Na3 Qh6 11. Nb5 Bd6 12. Nxd6 cxd6 13. Qd3 Be6 14. Bb5 Bd5 15. h3 Nf6 16. Qf5 Qh5 17. Qxh5 Nxh5 18. Nh2 g5 19. Bd2 Ng3 20. Rfe1 a6 21. Bd3 Rae8 22. Ng4 Kg7 23. Rxe8 Rxe8 24. Bxh7 Re2 25. c4 Rxg2# |
| ECO C22 in 1999 play it! usachyi mark defeats white's grosse klaus in 32 moves | 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Bb4+ 5. Nc3 d6 6. Bd2 Nf6 7. O-O-O O-O 8. f4 Re8 9. Bd3 d5 10. Qg3 d4 11. e5 dxc3 12. Bxc3 Nd5 13. Bc4 Be6 14. f5 Nxc3 15. Rxd8 Raxd8 16. bxc3 Ba3+ |