| ECO B24 in 2001 play it! welz peter defeats black's tahiri daut in 71 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. Qd2 Nge7 8. Bh6 Bf6 9. Nge2 Ng8 10. Be3 Nge7 11. f4 Nd4 12. O-O Nec6 13. Kh1 Bd7 14. Ng1 h5 15. h3 Qc7 16. Nd1 Ne7 17. c3 Ndc6 18. d4 Na5 19. b3 Bg7 20. Nf2 Rd8 21. Rac1 b6 22. Nf3 Bc8 23. c4 e5 24. d5 f6 25. Nd3 O-O 26. Nh2 Nb7 27. g4 hxg4 28. hxg4 Bd7 29. Qf2 Be8 30. Qh4 Rd7 31. Rf3 exf4 32. Rh3 fxe3 33. Nf3 Rf7 34. Nf4 Nd8 35. Qh7+ Kf8 36. Nh4 |
| ECO B26 in 2003 play it! welz peter defeats black's berthold andreas by checkmate in 91 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Rb8 7. a4 a6 8. f4 e6 9. Nf3 Nd4 10. O-O Ne7 11. Kh1 O-O 12. Bg1 Nec6 13. Ne1 b5 14. axb5 axb5 15. e5 d5 16. Nb1 Qb6 17. c3 Nf5 18. Nd2 Bb7 19. Nef3 d4 20. Ne4 Rfd8 21. Qe1 h6 22. g4 Nfe7 23. Qh4 Nd5 24. Nf6+ Nxf6 25. exf6 Bf8 26. f5 exf5 27. gxf5 g5 28. Nxg5 Ne5 29. Ne4 Kh8 30. cxd4 cxd4 31. Rad1 Rbc8 32. h3 Rc2 33. Bh2 Nd7 34. Bf4 Nxf6 35. Be5 Bg7 36. Rg1 Bxe4 37. Bxe4 Rxb2 38. Rxg7 Kxg7 39. Rg1+ Kh7 40. Bxf6 Rg8 41. Rxg8 Kxg8 42. Qg4+ Kf8 43. Qg7+ Ke8 44. Qg8+ Kd7 45. Qxf7+ Kd6 46. Qe7# |
| ECO B26 in 2002 play it! welz peter defeats black's suchin dimitry in 81 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. Qd2 Rb8 8. Nf3 e5 9. O-O Nge7 10. Bh6 O-O 11. Nh4 f5 12. Bxg7 Kxg7 13. f4 Be6 14. Nd5 Bxd5 15. exd5 Nb4 16. c4 exf4 17. a3 Na6 18. Qxf4 b5 19. Qd2 h6 20. Rae1 Nc7 21. Bh3 Ng8 22. Re2 Re8 23. Ref2 Qg5 24. Qa5 Re7 25. Bxf5 gxf5 26. Nxf5+ Kg6 27. Nxe7+ Qxe7 28. Re1 Qd7 29. Qxa7 Ra8 30. Qb7 Qc8 31. Re6+ Kg7 32. Qxc8 Rxc8 33. Rxd6 Ne8 34. Rc6 Rxc6 35. dxc6 bxc4 36. dxc4 Ngf6 37. Rf5 Ne4 38. Re5 N4d6 39. Rxc5 Kf7 40. b4 Nc7 41. Ra5 |
| ECO B23 in 2001 play it! welz peter defeats black's schoene maria in 55 moves | 1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Ne7 7. Qd2 Nbc6 8. Bh6 O-O 9. h4 f6 10. g4 Rf7 11. Bxg7 Rxg7 12. f4 Nd4 13. Nf3 e5 14. f5 Nxf3+ 15. Bxf3 g5 16. O-O-O Nc6 17. Rh3 Qe7 18. Rdh1 Bd7 19. hxg5 Rxg5 20. Qh2 Rg7 21. Nd5 Qf7 22. Rxh7 Rxh7 23. Nxf6+ Qxf6 24. Qxh7+ Kf8 25. Qh8+ Qxh8 26. Rxh8+ Kg7 27. Rxa8 a6 28. g5 |
| ECO B24 in 2000 play it! welz peter defeats black's lang andreas in 107 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. Qd2 Nf6 8. h3 Rb8 9. f4 b5 10. e5 Nd5 11. Nxd5 exd5 12. Bxd5 Nb4 13. Bg2 O-O 14. c3 Na6 15. Nf3 b4 16. O-O Bb7 17. d4 bxc3 18. bxc3 cxd4 19. cxd4 Bd5 20. exd6 Qxd6 21. Ne5 Bxg2 22. Qxg2 Qa3 23. Bf2 Bxe5 24. fxe5 Rb2 25. Qd5 Nb4 26. Qd6 Qf3 27. Qf6 Qxf6 28. exf6 Nd5 29. Rfb1 Rfb8 30. Rxb2 Rxb2 31. a4 Nxf6 32. d5 Nxd5 33. Bxa7 h5 34. a5 Nc3 35. a6 Nb5 36. Bf2 Rb4 37. a7 Nxa7 38. Rxa7 Kg7 39. Rd7 g5 40. Bd4+ Kg6 41. Rd6+ Kh7 42. Be3 Rb5 43. Kg2 Kg7 44. Rc6 f6 45. Rc5 Rb2+ 46. Kf3 Rh2 47. Bd4 Rxh3 48. Rxg5+ Kh6 49. Kg2 Kxg5 50. Kxh3 Kg6 51. Kg2 Kf5 52. Kf3 h4 53. g4+ Ke6 54. Ke4 |
| ECO C45 in 2000 play it! welz peter defeats black's keskowski thilo in 67 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 Qf6 7. Qe2 a6 8. Nc3 Nge7 9. Nd5 Nxd5 10. exd5+ Ne7 11. h4 h6 12. a5 Ba7 13. g4 d6 14. Ra4 O-O 15. g5 Qf5 16. gxh6 Bd7 17. Rf4 Qxd5 18. Rg1 Nf5 19. Bg2 Qe5 20. Qxe5 dxe5 21. Rb4 e4 22. Bxe4 Rfe8 23. Kf1 c5 24. Bxf5 Bxf5 25. Rxg7+ Kh8 26. Rxb7 Bb8 27. Bd2 Be5 28. Rgxf7 Bh3+ 29. Kg1 Rg8+ 30. Bg5 Rg6 31. f4 Bxb2 32. f5 Rd6 33. Rh7+ Kg8 34. f6 |
| ECO C45 in 1983 play it! welz peter defeats black's hentzgen in 37 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 a6 7. Nc3 Qf6 8. Qe2 Nge7 9. Nd5 Nxd5 10. exd5+ Ne7 11. h4 Qd6 12. a5 Ba7 13. Ra4 Kd8 14. Re4 Nxd5 15. Rh3 c6 16. c4 Nc7 17. Bg5+ f6 18. Rd3 Qf8 19. Bf4 |
| ECO C45 in 1994 play it! welz peter defeats black's loskamp stefan in 109 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 d5 7. e5 Ne4 8. Bxe4 dxe4 9. Qxd8+ Kxd8 10. O-O Bf5 11. Re1 Kc8 12. c3 Kb7 13. Nd2 Re8 14. Nc4 Be6 15. Na5+ Ka6 16. Nxc6 Bd5 17. Nd4 c5 18. Nc2 Rxe5 19. Bf4 Re8 20. Ne3 Be6 21. c4 Be7 22. Rad1 Rd8 23. Nd5 Bxd5 24. cxd5 Bd6 25. Rxe4 Bxf4 26. Rxf4 Rd7 27. Rf3 Rhd8 28. Rfd3 Kb5 29. b3 c4 30. Rd4 cxb3 31. axb3 Kc5 32. b4+ Kb5 33. g4 a5 34. bxa5 Kxa5 35. d6 Kb5 36. R4d2 Kc5 37. Rc2+ Kb4 38. Rb2+ Kc5 39. Rc2+ Kb4 40. Rd4+ Kb5 41. Rd5+ Ka6 42. Rcd2 Kb6 43. R5d3 Kc5 44. Rc3+ Kb4 45. Rf3 f6 46. Rfd3 Kc5 47. Rc3+ Kb4 48. Rc7 Kb3 49. Kg2 g6 50. Rc6 Kb4 51. Rb2+ Ka3 52. Rbb6 Ka4 53. Kf3 Ka5 54. h4 Re8 55. Rb1 |
| ECO C45 in 2000 play it! welz peter defeats black's berenstein alexa in 94 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 d6 7. O-O Be7 8. h3 h5 9. Bf4 Be6 10. Nd2 Nd7 11. Bh2 f6 12. f4 Nc5 13. Be2 Bf7 14. Bf3 a5 15. Qe2 Ne6 16. c3 Rb8 17. b3 Kf8 18. Rad1 Qc8 19. e5 d5 20. f5 Ng5 21. e6 Be8 22. c4 Qb7 23. Kh1 Rd8 24. h4 Nxf3 25. Nxf3 Qb6 26. Bg1 Qb4 27. Rd4 c5 28. Rxd5 Rxd5 29. cxd5 Bb5 30. Qf2 Bxf1 31. Qxf1 Bd6 32. Qa6 Ke7 33. Bh2 Bxh2 34. Kxh2 Rd8 35. Kh1 Rxd5 36. Qc6 Rd1+ 37. Kh2 Qb6 38. Qxb6 cxb6 39. Kg3 Ra1 40. Kf4 Rxa2 41. g4 hxg4 42. Kxg4 Rb2 43. Kh5 Rxb3 44. Nd2 Rb4 45. Kg6 Rxh4 46. Kxg7 Rg4+ 47. Kh6 Rg5 |
| ECO C45 in 1998 play it! welz peter defeats black's kostyra mariusz in 35 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 d5 7. e5 Ng4 8. Qe2 Bc5 9. O-O Qh4 10. h3 Qg3 11. hxg4 Bxg4 12. Qd2 h5 13. Qg5 f6 14. Bg6+ Ke7 15. exf6+ gxf6 16. Re1+ Kd8 17. Qxf6+ Kc8 18. Be3 |
| ECO C45 in 2001 play it! welz peter defeats black's nikolic stanimir in 63 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 a6 7. Nc3 Nf6 8. Bg5 h6 9. Bh4 Qe7 10. Be2 g5 11. Bg3 d6 12. Nd5 Nxd5 13. exd5 Ne5 14. a5 Ba7 15. O-O f5 16. Bxe5 Qxe5 17. Bh5+ Kd8 18. c4 Qxb2 19. c5 Bd7 20. Rb1 Qf6 21. Qc2 f4 22. cxd6 cxd6 23. Nd2 Rc8 24. Qb3 Bb5 25. Ne4 Qd4 26. Nxd6 Bxf1 27. Nxb7+ Kd7 28. Qh3+ Kc7 29. d6+ Kb8 30. Nc5+ Bb5 31. Nxa6+ Kb7 32. Qd7+ |
| ECO C45 in 1999 play it! welz peter defeats black's schmidt juergen in 67 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ 6. Bd2 Qe7 7. Bd3 d5 8. O-O Bxd2 9. exd5 Bb4 10. dxc6 Kf8 11. N1d2 Nf6 12. Nc4 bxc6 13. Qf3 Be6 14. Ne3 Nd5 15. c4 Nxe3 16. fxe3 Bd6 17. Nd4 Bd7 18. Rae1 Re8 19. Nxc6 Bxc6 20. Qxc6 Qe5 21. g3 h5 22. Bg6 Re7 23. Qa8+ Re8 24. Rxf7+ Kg8 25. Qf3 Qe6 26. Qd5 Rh6 27. Rf8+ Kxf8 28. Rf1+ Ke7 29. Qg5+ Kd7 30. Bf5 Be7 31. Qxg7 Qxf5 32. Rxf5 Re6 33. Rxh5 Kc8 34. Qg4 |
| ECO C45 in 2001 play it! welz peter defeats black's klewin oliver in 41 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Qxe4+ 6. Be3 Qe5 7. Nd2 Bd6 8. Nc4 Qe7 9. Ncxd6+ cxd6 10. Nc7+ Kf8 11. Nxa8 Nf6 12. Nc7 Qe5 13. c3 d5 14. Nb5 g6 15. Be2 Kg7 16. Nxa7 Nxa7 17. Bxa7 Re8 18. Bd4 Qg5 19. O-O d6 20. f4 Qh4 21. g3 |
| ECO C45 in 1997 play it! welz peter defeats black's ganske franka in 57 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4+ 5. c3 Ba5 6. Bc4 Nge7 7. O-O O-O 8. Bg5 d6 9. f4 Bb6 10. Kh1 Nxd4 11. cxd4 Qd7 12. Nc3 Nc6 13. d5 Nd8 14. Rc1 f6 15. Bh4 Qg4 16. Qe1 Nf7 17. Na4 Qd7 18. Bb3 Qe7 19. Qb4 g5 20. Nxb6 axb6 21. Bg3 Bg4 22. e5 gxf4 23. exf6 Qd7 24. Rxf4 Bf5 25. Rfc4 Rac8 26. Qc3 Ne5 27. Bxe5 dxe5 28. Rxc7 Qd6 29. Qg3+ |
| ECO C41 in 1997 play it! welz peter defeats black's federau juergen in 105 moves | 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. dxe5 dxe5 7. Bxf7+ Kxf7 8. Ng5+ Kg8 9. Ne6 Qe8 10. Nxc7 Qg6 11. Qe2 Rb8 12. Be3 b6 13. O-O-O h6 14. f3 Qf7 15. g4 Bc5 16. h4 Bxe3+ 17. Qxe3 Nc5 18. g5 Nh5 19. N7d5 Bb7 20. g6 Qe6 21. Rhg1 Nf6 22. Rd2 Bxd5 23. exd5 Qf5 24. d6 Rd8 25. b4 Ncd7 26. Kb2 Nf8 27. h5 Qxh5 28. Ne4 Qf5 29. Qb3+ Qe6 30. Nxf6+ gxf6 31. g7 Qxb3+ 32. Kxb3 Rh7 33. gxf8=Q+ Kxf8 34. c4 Kf7 35. c5 bxc5 36. bxc5 Ke6 37. Kc4 h5 38. Rgd1 h4 39. c6 h3 40. Kc5 h2 41. Rh1 Rh3 42. c7 Rc8 43. Rf2 Rh4 44. Rhxh2 Ra4 45. Kc6 Rc4+ 46. Kb7 Rf8 47. Rc2 Rb4+ 48. Kxa7 Rc8 49. Rb2 Rxb2 50. Rxb2 Kxd6 51. Kb6 Rh8 52. Rd2+ Ke7 53. Kb7 |
| ECO C02 in 2003 play it! welz peter defeats black's salden franziska in 87 moves | 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Bd7 7. b4 cxd4 8. cxd4 a6 9. Be3 Nge7 10. Bd3 Nf5 11. O-O Be7 12. Nc3 O-O 13. Bxf5 exf5 14. Nxd5 Qd8 15. Nxe7+ Nxe7 16. d5 Bb5 17. d6 Bxf1 18. dxe7 Qxe7 19. Bc5 Qd8 20. Qxf1 Re8 21. Rd1 Qc7 22. Qd3 Red8 23. Bd6 Qd7 24. Nd4 g6 25. Qe3 Rac8 26. h4 Re8 27. h5 Rcd8 28. Qg5 f6 29. Qxf6 Qf7 30. Qxf7+ Kxf7 31. Rc1 Rc8 32. Rxc8 Rxc8 33. a4 b6 34. h6 Rc1+ 35. Kh2 Ra1 36. Nf3 Rxa4 37. Ng5+ Kg8 38. e6 Ra2 39. Nf3 Rxf2 40. Ne5 Re2 41. e7 Rxe5 42. Bxe5 Kf7 43. Bd6 Ke8 44. Kg3 |
| ECO C02 in 2001 play it! welz peter defeats black's vollak andreas in 57 moves | 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 c4 7. Nbd2 Na5 8. Rb1 Bd7 9. b4 cxb3 10. Nxb3 Ba4 11. Nfd2 O-O-O 12. Bd3 f5 13. O-O g5 14. Bc2 Bb5 15. Re1 Be7 16. Nc5 Qc6 17. Nxe6 Qxe6 18. Rxb5 b6 19. Bd3 h5 20. Qa4 Nh6 21. Nb3 a6 22. Rxa5 bxa5 23. Qxa5 Rd7 24. Bxg5 Bxg5 25. Bxa6+ Kb8 26. Nc5 Qe7 27. Rb1+ Ka8 28. Bc4+ Ra7 29. Bxd5+ |
| ECO C02 in 2002 play it! welz peter defeats black's brack peter in 49 moves | 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 f6 7. Bd3 Bd7 8. O-O O-O-O 9. dxc5 Bxc5 10. b4 Be7 11. exf6 gxf6 12. a4 Qc7 13. Na3 Ne5 14. Nb5 Nxf3+ 15. Qxf3 Bxb5 16. axb5 b6 17. Be3 h5 18. Ra6 Rd6 19. Rfa1 Kb8 20. Qe2 Nh6 21. Qa2 Rd7 22. Bxb6 Qxc3 23. Bxa7+ Rxa7 24. Rxa7 Qxb4 25. Qa6 |
| ECO C02 in 2000 play it! welz peter defeats black's lorenz sascha in 85 moves | 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. dxc5 Bxc5 7. Bd3 f6 8. Bf4 Qb6 9. Qc2 g5 10. Bg3 g4 11. Nfd2 Nxe5 12. Be2 Nh6 13. O-O Rc8 14. a4 O-O 15. a5 Qd8 16. Nb3 Be7 17. a6 b6 18. Nd4 Ng6 19. Qd2 Kg7 20. Na3 f5 21. f4 Bd6 22. Rae1 Bxa3 23. bxa3 Re8 24. Bb5 Bxb5 25. Nxb5 Rc4 26. Re3 Re4 27. Rxe4 fxe4 28. Nxa7 Nf5 29. Nb5 Qc8 30. a7 Qc5+ 31. Nd4 Nxg3 32. hxg3 Qxa3 33. f5 e5 34. f6+ Kf7 35. Qh6 exd4 36. Qxh7+ Ke6 37. Qxg6 Rf8 38. Qxg4+ Kd6 39. Qg7 Kc6 40. Qe7 Qc5 41. Qxc5+ bxc5 42. cxd4 cxd4 43. Rb1 |
| ECO C02 in 1994 play it! welz peter defeats black's suhl dirk in 75 moves | 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 c4 7. Nbd2 Bd7 8. b4 cxb3 9. Nxb3 Na5 10. Nxa5 Qxa5 11. Bd2 Qa4 12. Qb1 b5 13. Bd3 h6 14. h4 Ne7 15. h5 Nc8 16. g4 Nb6 17. g5 O-O-O 18. gxh6 gxh6 19. Rg1 Nc4 20. Bxc4 bxc4 21. Ra2 Kc7 22. Rb2 Bc6 23. Ke2 Qa6 24. Ne1 Ba4 25. Nc2 Bb3 26. f4 Rb8 27. f5 Bxc2 28. Qxc2 Rxb2 29. Qxb2 Qxa3 30. Qxa3 Bxa3 31. Ra1 exf5 32. Rxa3 Kb6 33. Ra1 a5 34. Rf1 a4 35. Bc1 Ka5 36. Rxf5 Rb8 37. Rxf7 Rb1 38. e6 |