| ECO A00 in 1989 play it! merten rainer defeats white's gross wilhelm in 63 moves | 1. b4 d5 2. Bb2 Nf6 3. e3 c6 4. c4 Bg4 5. Qb3 e6 6. c5 Nbd7 7. Be2 e5 8. d3 Be6 9. Qc2 Qc7 10. Nf3 Ng4 11. Ng5 Nh6 12. Nxe6 fxe6 13. O-O Be7 14. Bh5+ g6 15. Be2 O-O 16. Nd2 Bf6 17. Rad1 a5 18. a3 Bg7 19. Qb3 Nf5 20. Bg4 Rae8 21. Rc1 Qd8 22. bxa5 Qxa5 23. Rc2 Nxc5 24. Qc3 Qxc3 25. Bxc3 Nxd3 26. Be2 e4 27. Bxg7 Kxg7 28. Bxd3 exd3 29. Rc3 Rb8 30. Nb3 Kf7 31. Nc5 Ke7 32. Nxd3 |
| ECO A00 in 1986 play it! merten rainer defeats white's gross wilhelm in 59 moves | 1. b4 Nf6 2. Bb2 d5 3. e3 Bg4 4. Nf3 Nbd7 5. c4 e5 6. Be2 Bxf3 7. Bxf3 dxc4 8. Bxb7 Rb8 9. Bc6 Bxb4 10. Bxe5 O-O 11. Bd4 Bc5 12. Bc3 Rb6 13. Qa4 Nb8 14. Bb5 Qd3 15. Qxc4 Qxc4 16. Bxc4 Nbd7 17. O-O Ne4 18. f3 Nxc3 19. Nxc3 c6 20. Bb3 Bb4 21. Ne4 Kh8 22. h3 f5 23. Nc3 Nc5 24. Rab1 Rfb8 25. Rfc1 Nd3 26. Rc2 c5 27. Nd5 Rd6 28. Bc4 Ne5 29. e4 Rf8 30. a3 |
| ECO A00 in 1986 play it! merten rainer defeats white's gross wilhelm in 59 moves | 1. b4 d5 2. Bb2 Nf6 3. Nf3 Bg4 4. e3 Nbd7 5. c4 e5 6. Be2 Bxf3 7. Bxf3 dxc4 8. Bxb7 Rb8 9. Bc6 Bxb4 10. Bxe5 O-O 11. Bd4 Bc5 12. Bc3 Rb6 13. Qa4 Nb8 14. Bb5 Qd3 15. Qxc4 Qxc4 16. Bxc4 Nbd7 17. O-O Ne4 18. f3 Nxc3 19. Nxc3 c6 20. Bb3 Bb4 21. Ne4 Kh8 22. h3 f5 23. Nc3 Nc5 24. Rab1 Rfb8 25. Rfc1 Nd3 26. Rc2 c5 27. Nd5 Rd6 28. Bc4 Ne5 29. e4 Rf8 30. a3 |
| ECO A00 in 1988 play it! merten rainer defeats white's gross wilhelm in 77 moves | 1. b4 e5 2. Bb2 d6 3. e3 Nf6 4. b5 Be7 5. Be2 Bf5 6. Nf3 O-O 7. Nc3 Nbd7 8. d3 Nb6 9. O-O Qd7 10. e4 Bg4 11. a4 c6 12. a5 Nc8 13. bxc6 Qxc6 14. h3 Bd7 15. Nd2 Be6 16. f4 exf4 17. Rxf4 Nd7 18. Nb3 Bf6 19. d4 Bxb3 20. cxb3 Ne7 21. Rc1 Qc7 22. Nd5 Qd8 23. Nxf6+ Nxf6 24. Qe1 Ng6 25. Rf5 Nxe4 26. Bf3 Nf6 27. Bxb7 Rb8 28. a6 Re8 29. Qg3 Ne4 30. Qd3 Nf6 31. Rcf1 Qb6 32. Kh1 Re7 33. d5 Ne5 34. Qg3 Ng6 35. Bxf6 gxf6 36. Rxf6 Rbe8 37. Qxd6 Qxb3 38. Qc6 Qb4 39. Qc1 |
| ECO A00 in 1988 play it! merten rainer defeats white's gross wilhelm in 50 moves | 1. b4 e5 2. Bb2 Nf6 3. a3 d6 4. e3 Bf5 5. Nf3 Be7 6. Be2 Nbd7 7. O-O O-O 8. c4 c6 9. Qb3 Be6 10. Qc2 Ne8 11. d4 exd4 12. Nxd4 Nef6 13. Nd2 Ne5 14. Rad1 Bg4 15. N2f3 Nxf3+ 16. gxf3 Bh5 17. Kh1 Bg6 18. Bd3 Qc7 19. Rg1 Bxd3 20. Qxd3 Rfe8 21. Nf5 g6 22. Qc3 Bd8 23. Rxd6 Re6 24. Rxe6 fxe6 25. Rd1 exf5 |
| ECO A00 in 1988 play it! merten rainer defeats white's gross wilhelm in 64 moves | 1. b4 e5 2. Bb2 d6 3. e3 Nf6 4. b5 Bg4 5. Be2 Bxe2 6. Nxe2 Be7 7. c4 Nbd7 8. d3 O-O 9. O-O Ng4 10. h3 Nh6 11. e4 f5 12. f4 fxe4 13. dxe4 Nf7 14. Nbc3 Nc5 15. Qc2 c6 16. Rad1 Qb6 17. Kh1 Rad8 18. fxe5 Nxe5 19. Rxf8+ Rxf8 20. Na4 Nxa4 21. Bxe5 cxb5 22. cxb5 dxe5 23. Qxa4 Qf2 24. Ng1 Bh4 25. Qb3+ Kh8 26. Nf3 Bg3 27. Qb4 Rg8 28. Qc4 Rf8 29. Rf1 Qb6 30. Rc1 h6 31. Rd1 Qe3 32. Rd3 Qe1+ |
| ECO A00 in 1988 play it! merten rainer defeats white's gross wilhelm in 50 moves | 1. b4 d5 2. Bb2 Nf6 3. e3 a6 4. c4 Bg4 5. Qc2 Nbd7 6. cxd5 Nxd5 7. a3 e6 8. Nc3 N7f6 9. Bd3 Be7 10. Nge2 Rc8 11. b5 axb5 12. Nxd5 Qxd5 13. Nf4 Qc6 14. Rc1 Qxc2 15. Rxc2 c6 16. Bxb5 e5 17. Bxc6+ Rxc6 18. Rxc6 bxc6 19. Bxe5 O-O 20. a4 Ra8 21. O-O Rxa4 22. h3 Bf5 23. Rc1 c5 24. Bxf6 Bxf6 25. Rxc5 Be6 |
| ECO A00 in 1986 play it! merten rainer defeats white's gross wilhelm in 64 moves | 1. b4 d5 2. Bb2 Nf6 3. Nf3 Bg4 4. e3 a6 5. a3 b5 6. d4 e6 7. Nbd2 Nbd7 8. Bd3 Be7 9. O-O O-O 10. c3 Nb6 11. Qc2 Bh5 12. Ne5 Bd6 13. Ndf3 Nc4 14. Nd2 Nxe5 15. dxe5 Bxe5 16. f4 Bd6 17. a4 c6 18. axb5 axb5 19. Rxa8 Qxa8 20. Ra1 Qb7 21. Nb3 Qb6 22. Nd4 c5 23. bxc5 Qxc5 24. Ba3 Qb6 25. Bxd6 Qxd6 26. Nxb5 Qc5 27. Nd4 Bg6 28. Bxg6 hxg6 29. Ra4 Rc8 30. Kf2 Ne4+ 31. Kf3 g5 32. Nb3 Qb5 |
| ECO A00 in 1989 play it! merten rainer defeats white's grosser wilhelm in 63 moves | 1. b4 c6 2. Bb2 d5 3. e3 Nf6 4. c4 Bg4 5. Qb3 e6 6. c5 Nbd7 7. Be2 e5 8. d3 Be6 9. Qc2 Qc7 10. Nf3 Ng4 11. Ng5 Nh6 12. Nxe6 fxe6 13. O-O Be7 14. Bh5+ g6 15. Be2 O-O 16. Nd2 Bf6 17. Rad1 a5 18. a3 Bg7 19. Qb3 Nf5 20. Bg4 Rae8 21. Rc1 Qd8 22. bxa5 Qxa5 23. Rc2 Nxc5 24. Qc3 Qxc3 25. Bxc3 Nxd3 26. Be2 e4 27. Bxg7 Kxg7 28. Bxd3 exd3 29. Rc3 Rb8 30. Nb3 Kf7 31. Nc5 Ke7 32. Nxd3 |
| ECO A00 in 1988 play it! merten rainer defeats white's gross wilhelm in 40 moves | 1. b4 d5 2. Bb2 Bg4 3. b5 Nf6 4. h3 Bh5 5. Nf3 Nbd7 6. e3 c6 7. a4 Qc7 8. c4 e5 9. Be2 dxc4 10. Na3 Be7 11. Nxc4 e4 12. Ng5 Bxe2 13. Qxe2 h6 14. Nxf7 Kxf7 15. O-O Rhe8 16. f3 Kg8 17. f4 Rac8 18. Ne5 Bd6 19. Qc4+ Kh8 20. Qf7 Nxe5 |
| ECO A00 in 1989 play it! merten rainer defeats white's gross wilhelm in 60 moves | 1. b4 d5 2. Bb2 Nf6 3. e3 c6 4. Be2 e6 5. a3 Nbd7 6. f4 Ne4 7. Nf3 Be7 8. O-O Bf6 9. c3 Nb6 10. d3 Nd6 11. Nbd2 Nd7 12. e4 dxe4 13. dxe4 Nb5 14. e5 Be7 15. c4 Nc7 16. Ne4 O-O 17. Qc2 f5 18. exf6 Nxf6 19. Rad1 Qe8 20. Be5 Na6 21. Neg5 Qg6 22. Bd3 Qh5 23. h3 h6 24. Bxf6 Rxf6 25. Nh7 Rxf4 26. Bg6 Rxc4 27. Qb1 Qb5 28. Bd3 Qb6+ 29. Rf2 Rf4 30. Kh1 Qxf2 |
| ECO A00 in 1989 play it! merten rainer defeats white's grosser wilhelm in 62 moves | 1. b4 c6 2. Bb2 Nf6 3. c4 d5 4. e3 Bg4 5. Nf3 e6 6. c5 Nbd7 7. Be2 Be7 8. Nh4 Bxe2 9. Qxe2 e5 10. O-O Qc7 11. Nf5 Rg8 12. f4 e4 13. Na3 g6 14. Nh6 Rf8 15. Rac1 Ng8 16. Ng4 f5 17. Ne5 Bf6 18. d4 exd3 19. Nxd3 a6 20. Nb1 O-O-O 21. Nc3 Rfe8 22. Qf2 Bh8 23. Na4 Ngf6 24. Be5 Nxe5 25. Nxe5 Ne4 26. Qb2 Bxe5 27. fxe5 Rxe5 28. Rf3 Rde8 29. Nc3 Nf6 30. Nd1 Ng4 31. h3 Nf6 |
| ECO A00 in 1986 play it! merten rainer defeats white's gross wilhelm in 38 moves | 1. b4 Nf6 2. Bb2 d5 3. e3 Bg4 4. Nf3 e6 5. c4 Bxf3 6. Qxf3 Bxb4 7. cxd5 Nxd5 8. Bxg7 Rg8 9. Bb2 Nc6 10. a3 Bd6 11. Bb5 Qg5 12. h3 Qxg2 13. Qxg2 Rxg2 14. d4 Ke7 15. Nd2 Rag8 16. Ne4 Rg1+ 17. Rxg1 Rxg1+ 18. Ke2 Rxa1 19. Bxa1 Bxa3 |
| ECO A00 in 1987 play it! merten rainer defeats white's gross wilhelm in 68 moves | 1. b4 e5 2. a3 Nf6 3. e3 d5 4. d4 e4 5. c4 Bg4 6. Qa4+ Nbd7 7. cxd5 Nxd5 8. Ne2 Bd6 9. Nec3 c6 10. Nxe4 Bc7 11. Bd3 O-O 12. O-O f5 13. Nc5 Nxc5 14. bxc5 Qh4 15. f4 Rf6 16. g3 Qh5 17. Bc4 Bh3 18. Rf2 a6 19. Nc3 Rd8 20. Nxd5 cxd5 21. Be2 Bg4 22. Bxg4 Qxg4 23. Qb3 b6 24. Bb2 h5 25. Qd1 Re6 26. Qxg4 hxg4 27. Re2 bxc5 28. dxc5 d4 29. Kf2 dxe3+ 30. Kf1 Rd2 31. Rae1 Ba5 32. Be5 Rxe2 33. Rxe2 Rc6 34. Bd4 Bd2 |
| ECO A00 in 1989 play it! merten rainer defeats white's grosser wilhelm in 50 moves | 1. b4 c6 2. Bb2 Qb6 3. a3 d5 4. e3 Nd7 5. c4 Ngf6 6. Nf3 e6 7. Nc3 a5 8. c5 Qc7 9. d4 e5 10. dxe5 Nxe5 11. Nxe5 Qxe5 12. Na4 Qg5 13. Nb6 Rb8 14. h4 Qh6 15. Be5 Bg4 16. Qa4 Rd8 17. Qxa5 Be7 18. Qa7 O-O 19. Qxb7 Rfe8 20. Be2 Bxe2 21. Bf4 Qg6 22. Kxe2 Qc2+ 23. Kf3 Nh5 24. Rac1 Qe4+ 25. Ke2 Nxf4+ |
| ECO A00 in 1988 play it! merten rainer defeats white's gross wilhelm in 30 moves | 1. b4 e5 2. Bb2 Bxb4 3. f4 f6 4. fxe5 fxe5 5. Bxe5 Nf6 6. Nf3 Nc6 7. Bb2 O-O 8. e3 d5 9. Be2 Bg4 10. O-O Ne4 11. a3 Bd6 12. Nc3 Bxf3 13. Rxf3 Rxf3 14. Bxf3 Qh4 15. Nxe4 Bxh2+ |
| ECO A00 in 1986 play it! merten rainer defeats white's gross wilhelm in 46 moves | 1. b4 Nf6 2. Bb2 d5 3. e3 Bg4 4. Nf3 e6 5. c4 Bxb4 6. cxd5 exd5 7. Qa4+ Nc6 8. Ne5 Qd6 9. Bb5 Bd7 10. Nxd7 Nxd7 11. a3 Bc5 12. Qg4 O-O-O 13. O-O h5 14. Qxg7 Rhg8 15. Qxf7 Rdf8 16. Qxh5 d4 17. exd4 Nxd4 18. Bxd7+ Kxd7 19. Qh3+ Kd8 20. Qh4+ Kc8 21. Bxd4 Bxd4 22. Nc3 a6 23. Rac1 Rf4 |
| ECO A00 in 1989 play it! merten rainer defeats white's grosser wilhelm in 60 moves | 1. b4 c6 2. Bb2 d5 3. e3 Nf6 4. Be2 e6 5. a3 Nbd7 6. f4 Ne4 7. Nf3 Be7 8. O-O Bf6 9. c3 Nb6 10. d3 Nd6 11. Nbd2 Nd7 12. e4 dxe4 13. dxe4 Nb5 14. e5 Be7 15. c4 Nc7 16. Ne4 O-O 17. Qc2 f5 18. exf6 Nxf6 19. Rad1 Qe8 20. Be5 Na6 21. Neg5 Qg6 22. Bd3 Qh5 23. h3 h6 24. Bxf6 Rxf6 25. Nh7 Rxf4 26. Bg6 Rxc4 27. Qb1 Qb5 28. Bd3 Qb6+ 29. Rf2 Rf4 30. Kh1 Qxf2 |
| ECO A00 in 1988 play it! merten rainer defeats white's gross wilhelm in 40 moves | 1. b4 e5 2. Bb2 d6 3. e3 Nf6 4. b5 Bf5 5. c4 Nbd7 6. Nc3 Nc5 7. d3 Be7 8. Be2 O-O 9. e4 Bg6 10. Nf3 Nh5 11. O-O Nf4 12. Nd5 Nxe2+ 13. Qxe2 Bh5 14. Nxe7+ Qxe7 15. a4 f5 16. Qc2 fxe4 17. dxe4 Rxf3 18. h3 Rf4 19. f3 Raf8 20. Ra3 Qe6 |
| ECO A00 in 1987 play it! merten rainer defeats white's gross wilhelm in 39 moves | 1. b4 e5 2. Bb2 e4 3. b5 d5 4. e3 Nf6 5. c4 c6 6. cxd5 cxd5 7. Ne2 Bg4 8. Qb3 Nbd7 9. Nd4 Nc5 10. Qc2 Rc8 11. Nc3 Be7 12. f3 exf3 13. gxf3 Bh5 14. Bh3 Ncd7 15. Rg1 O-O 16. Kf2 Bc5 17. Qa4 Nb6 18. Qc2 Bg6 19. Bf5 Bxd4 20. Bxg6 |