| ECO A04 in 2007 play it! atchim defeats black's ion in 51 moves | 1. Nf3 e6 2. g3 d5 3. Bg2 c5 4. O-O Bd6 5. Nc3 a6 6. e4 d4 7. e5 dxc3 8. exd6 Qxd6 9. dxc3 Qxd1 10. Rxd1 Ne7 11. Bf4 Nbc6 12. Bd6 c4 13. Nd2 b5 14. Bxe7 Bb7 15. Ba3 a5 16. Ne4 b4 17. Nd6+ Ke7 18. Nxb7 bxa3 19. Bxc6 axb2 20. Rab1 Ra6 21. Rd7+ Kf6 22. Bb5 Rb6 23. Rxb2 Rb8 24. Nd6 Kg6 25. a4 f5 26. Nxc4 |
| ECO A21 in 2007 play it! atchim defeats black's knightshade in 45 moves | 1. c4 e5 2. Nc3 c6 3. Nf3 d6 4. e4 Be7 5. Be2 Bf6 6. O-O Ne7 7. d4 Ng6 8. Be3 O-O 9. dxe5 Bxe5 10. Nxe5 Nxe5 11. f4 Ng6 12. Qd3 f5 13. c5 fxe4 14. Qxd6 Bf5 15. g4 Bd7 16. Bc4+ Kh8 17. f5 Rf6 18. Qd4 b5 19. cxb6 Nh4 20. b7 Nf3+ 21. Rxf3 exf3 22. bxa8=Q Qc7 23. Qxd7 |
| ECO A10 in 2007 play it! atchim defeats black's alkohn in 59 moves | 1. c4 g6 2. d4 Bg7 3. e4 e5 4. dxe5 Bxe5 5. Nf3 Bg7 6. Bd3 Nc6 7. O-O Nge7 8. Nc3 O-O 9. c5 Ne5 10. Nxe5 Bxe5 11. Bh6 Re8 12. Bc4 d6 13. Qb3 d5 14. Nxd5 Nxd5 15. Bxd5 Be6 16. Bxe6 Rxe6 17. Qxb7 Rb8 18. Qxa7 Rxb2 19. Rfd1 Qc8 20. Rab1 Re8 21. Rxb2 Bxb2 22. Qa4 Qe6 23. Rd7 Be5 24. f3 Rb8 25. f4 Bg7 26. Bxg7 Kxg7 27. Rd1 Rb2 28. Qd4+ Qf6 29. e5 Rxg2+ 30. Kxg2 |
| ECO B32 in 2007 play it! atchim defeats black's darkhorse in 45 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qa5+ 5. Nc3 e6 6. Nb3 Qc7 7. Be2 b6 8. f4 a6 9. O-O Bb7 10. Be3 Rd8 11. Na4 Bc5 12. Nbxc5 bxc5 13. Bxc5 Rc8 14. Bd6 Qa5 15. c3 Nf6 16. Nc5 Qb6 17. Qb3 Qxb3 18. axb3 Ba8 19. Bxa6 Rd8 20. Bc7 Kf8 21. Bxd8 Nxd8 22. e5 Nd5 23. Nxd7+ |
| ECO B97 in 2007 play it! atchim defeats black's nightmare by checkmate in 53 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Qe3+ 9. Qe2 Qxe2+ 10. Bxe2 Be7 11. O-O Nc6 12. Rfd1 e5 13. fxe5 dxe5 14. Bxf6 Bxf6 15. Nd5 Be6 16. Nc7+ Ke7 17. Nxa8 Rxa8 18. Nc5 b5 19. c3 Kf8 20. Nxe6+ fxe6 21. a4 bxa4 22. Rxa4 a5 23. Bb5 Ne7 24. Rxa5 Rxa5 25. Rd8+ Kf7 26. Be8+ Kg8 27. Bg6# |
| ECO B56 in 2007 play it! atchim defeats black's angus in 25 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 b6 7. Bb5+ Nbd7 8. Bc6 Rb8 9. Bg5 h6 10. Bxf6 Qxf6 11. O-O Be7 12. Nd5 Qe6 13. Nc7+ |
| ECO C20 in 2007 play it! atchim defeats black's ardo in 57 moves | 1. e4 e5 2. Bb5 c6 3. Ba4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Qe7 7. cxd4 Bb4+ 8. Nc3 Nd5 9. Ne2 O-O 10. O-O Nb6 11. Bc2 d5 12. Qd3 g6 13. Bh6 Bf5 14. Bxf8 Qxf8 15. Qd1 Bg4 16. h3 Be6 17. Nf4 Nc4 18. Nxe6 fxe6 19. Qg4 Qf7 20. a3 Ba5 21. b4 Bb6 22. Qh4 Nd7 23. Ne2 Rf8 24. Qh6 Nd2 25. Qxd2 a6 26. a4 Nxe5 27. dxe5 Bxf2+ 28. Kh1 Qg7 29. Nf4 |
| ECO C20 in 2007 play it! atchim defeats black's txals in 63 moves | 1. e4 e5 2. Bb5 c6 3. Ba4 b5 4. Bb3 Nf6 5. Nf3 d6 6. d3 h6 7. O-O g5 8. Be3 g4 9. Nfd2 d5 10. d4 Bd6 11. exd5 cxd5 12. Qe2 a6 13. dxe5 Bxe5 14. Bd4 Nc6 15. Bxe5 Nxe5 16. Qxe5+ Qe7 17. Re1 Ng8 18. Bxd5 Ra7 19. Bxf7+ Kf8 20. Be6 Bxe6 21. Qxh8 Qc5 22. Rxe6 Rf7 23. Re2 Qxc2 24. Nc3 Qxb2 25. Re8+ Kxe8 26. Qxg8+ Ke7 27. Re1+ Kd6 28. Qd8+ Kc5 29. Re5+ Kb4 30. Qd4+ Ka5 31. Nb3+ Qxb3 32. axb3 |
| ECO C20 in 2007 play it! atchim defeats black's joy by checkmate in 37 moves | 1. e4 e5 2. Bb5 c6 3. Ba4 Na6 4. c3 Nc5 5. Bc2 Be7 6. d4 Ne6 7. dxe5 Nf4 8. Bxf4 Bh4 9. Nf3 Qe7 10. g3 g5 11. Be3 Nh6 12. Qd6 Qd8 13. Qxh6 Rg8 14. Qxh7 Kf8 15. Bc5+ d6 16. Bxd6+ Ke8 17. Qxg8+ Kd7 18. Qxf7+ Qe7 19. Qxe7# |
| ECO C20 in 2007 play it! atchim defeats black's pakrat by checkmate in 37 moves | 1. e4 e5 2. Bb5 c6 3. Ba4 g6 4. Nf3 Qa5 5. c3 Bc5 6. b4 Qb6 7. bxc5 Qxc5 8. Ba3 Qa5 9. Bd6 Na6 10. d4 Nf6 11. Bxe5 Nxe4 12. Bxh8 b5 13. Qe2 d5 14. Bc2 b4 15. Bxe4 bxc3 16. Bxd5+ Kf8 17. Bxc6 c2+ 18. Nbd2 Nb4 19. Qe8# |
| ECO C20 in 2007 play it! atchim defeats black's fletcher in 71 moves | 1. e4 e5 2. Bb5 a6 3. Ba4 Nf6 4. Nc3 Bb4 5. Nf3 Bxc3 6. dxc3 O-O 7. Bg5 b5 8. Bb3 d6 9. O-O Bb7 10. Re1 Nbd7 11. a3 c5 12. Qxd6 Qb8 13. Qxb8 Raxb8 14. Rad1 Bc6 15. Rd6 Rb6 16. Bxf6 Nxf6 17. Nxe5 c4 18. Nxc6 cxb3 19. Ne7+ Kh8 20. Rxb6 Re8 21. Nf5 h6 22. Nd6 Re7 23. cxb3 Kh7 24. Rxa6 Re6 25. c4 bxc4 26. bxc4 Nd7 27. b4 Ne5 28. c5 Nd3 29. Rd1 Nb2 30. Rd4 f5 31. c6 fxe4 32. c7 e3 33. fxe3 Rxe3 34. c8=Q Re1+ 35. Kf2 Re7 36. Rd2 |
| ECO C20 in 2007 play it! atchim defeats black's udonat by checkmate in 43 moves | 1. e4 e5 2. Bb5 Nf6 3. d4 exd4 4. e5 Ne4 5. Qxd4 f5 6. exf6 gxf6 7. Qxe4+ Be7 8. Qg4 c6 9. Qh5+ Kf8 10. Bh6+ Kg8 11. Qg4+ Kf7 12. Qg7+ Ke6 13. Bd3 Rg8 14. Qxh7 Qa5+ 15. Nc3 Qb4 16. Qxg8+ Kd6 17. Qg3+ Ke6 18. a3 Qxb2 19. Qg8+ Kd6 20. Bf4+ Kc5 21. Na4+ Kd4 22. Nf3# |
| ECO C20 in 2007 play it! atchim defeats black's blackbird by checkmate in 55 moves | 1. e4 e5 2. Bb5 a6 3. Ba4 Nf6 4. d4 exd4 5. e5 Ng8 6. Qxd4 Nc6 7. Bxc6 bxc6 8. Nf3 d6 9. O-O Be6 10. Bf4 c5 11. Qa4+ Bd7 12. Qe4 dxe5 13. Bxe5 Be7 14. Bxg7 Nf6 15. Bxf6 Rg8 16. Ng5 h6 17. Bxe7 Qxe7 18. Qxa8+ Qd8 19. Re1+ Be6 20. Nxe6 Qxa8 21. Nxc7+ Kd8 22. Nxa8 Kd7 23. Nb6+ Kc6 24. Nc4 Rb8 25. Re7 Kd5 26. Nba3 f5 27. Rd1+ Kc6 28. Rd6# |
| ECO C20 in 2007 play it! atchim defeats black's olidan in 27 moves | 1. e4 e5 2. Bb5 Nf6 3. d4 exd4 4. e5 Qe7 5. Qxd4 Nc6 6. Bxc6 dxc6 7. Nf3 Bg4 8. Be3 Bxf3 9. exf6 gxf6 10. gxf3 Rd8 11. Qe4 Rg8 12. Nc3 f5 13. Qxf5 Bh6 14. Qxh7 |
| ECO C20 in 2007 play it! atchim defeats black's knightshade in 31 moves | 1. e4 e5 2. Bb5 c6 3. Ba4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. cxd4 Bb4+ 8. Kf1 Qh4 9. g3 Qe7 10. Qg4 d5 11. Qxc8+ Qd8 12. Qxb7 O-O 13. Qxa8 Qa5 14. b3 Qa6+ 15. Kg2 Qe2 16. Nxe2 |
| ECO C20 in 2007 play it! atchim defeats black's fletcher by checkmate in 71 moves | 1. e4 e5 2. Bb5 a6 3. Ba4 b5 4. Bb3 c5 5. d3 Bb7 6. f4 d5 7. exd5 Bxd5 8. Bxd5 Qxd5 9. Qf3 Qxf3 10. Nxf3 exf4 11. Bd2 Bd6 12. O-O Nc6 13. Nc3 Nge7 14. Ne4 Bc7 15. Nxc5 O-O 16. c3 Bb6 17. d4 Bxc5 18. dxc5 Nd5 19. Nd4 Ne5 20. b4 Nc4 21. Bxf4 Nxc3 22. Rf3 Nd5 23. a3 Rfe8 24. Bg3 Re3 25. Rxe3 Ndxe3 26. Re1 Nd5 27. Rd1 Nxa3 28. Nc6 Nf6 29. Bb8 h6 30. Rd8+ Kh7 31. Ne7 Nc2 32. c6 Nxb4 33. c7 a5 34. c8=Q g6 35. Rh8+ Kg7 36. Qf8# |
| ECO C20 in 2007 play it! atchim defeats black's miles by checkmate in 27 moves | 1. e4 e5 2. Bb5 Nf6 3. d4 Nxe4 4. Qe2 Bb4+ 5. c3 Qf6 6. Qxe4 O-O 7. dxe5 Qe6 8. cxb4 f5 9. Qc4 d5 10. Qxc7 Re8 11. Bxe8 a5 12. Qd8 axb4 13. Bg6+ Qe8 14. Qxe8# |
| ECO C20 in 2007 play it! atchim defeats black's jimmyw in 37 moves | 1. e4 e5 2. Bb5 c6 3. Ba4 Nf6 4. Qe2 Bc5 5. Nf3 O-O 6. O-O d5 7. d3 Nbd7 8. exd5 cxd5 9. Nc3 h6 10. Bb3 d4 11. Ne4 Nxe4 12. Qxe4 Bd6 13. Bxh6 gxh6 14. Qg6+ Kh8 15. Qxh6+ Kg8 16. Ng5 Nf6 17. Qg6+ Kh8 18. Bxf7 Rg8 19. Qh6+ |
| ECO C20 in 2007 play it! atchim defeats black's tengo in 63 moves | 1. e4 e5 2. Bb5 a6 3. Ba4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Nd5 7. cxd4 Bb4+ 8. Bd2 O-O 9. Qf3 c6 10. Bxb4 Nxb4 11. Nc3 Qa5 12. a3 Nd5 13. b4 Qb6 14. Nxd5 cxd5 15. Ne2 d6 16. Qxd5 dxe5 17. Qxe5 Qg6 18. O-O Be6 19. Rfc1 b5 20. Bc2 Qh6 21. d5 Nd7 22. Qd4 Bg4 23. Qxg4 Nf6 24. Qd4 Rfd8 25. d6 Rac8 26. Bf5 Rc4 27. Rxc4 bxc4 28. Qxc4 Qh5 29. Qc7 Re8 30. Ng3 Qh4 31. d7 Nxd7 32. Bxd7 |
| ECO C20 in 2007 play it! atchim defeats black's knightshade in 49 moves | 1. e4 e5 2. Bb5 c6 3. Ba4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. cxd4 Bb4+ 8. Kf1 Qh4 9. g3 Qd8 10. Qg4 d5 11. Qxg7 Rf8 12. Qxh7 b6 13. Nf3 Bg4 14. Kg2 f6 15. Qg6+ Kd7 16. Qxg4+ Kc7 17. Bf4 fxe5 18. Nxe5 Kb7 19. Qg7+ Ka6 20. Bxc6 Nxc6 21. Nxc6 Qc8 22. Nxb4+ Ka5 23. Nxd5 Qc6 24. Qe5 Qc2 25. Nc7+ |