| ECO B13 in 2002 play it! haba petr defeats white's vavra pavel in 50 moves | 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c3 Nc6 5. Nf3 Nf6 6. Ne5 e6 7. f4 Ne4 8. Qh5 g6 9. Qf3 f6 10. Nd3 h5 11. g3 e5 12. fxe5 Bg4 13. Qg2 fxe5 14. dxe5 Bg7 15. Nd2 O-O 16. Nxe4 dxe4 17. Qxe4 Nxe5 18. Bf4 Bf5 19. Qxe5 Bxe5 20. Nxe5 g5 21. Rd1 Qe7 22. Rg1 Rad8 23. Be2 Rxd1+ 24. Kxd1 Qc5 25. Rg2 Qd5+ |
| ECO B14 in 2001 play it! haba petr defeats white's matras agnieszka in 50 moves | 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. cxd5 Nxd5 8. Bd2 Nc6 9. Bd3 Nf6 10. O-O Be7 11. Be3 O-O 12. Rc1 Nb4 13. Bb1 b6 14. a3 Nbd5 15. Qd3 Bb7 16. Ne5 Nxc3 17. Rxc3 Qd5 18. f3 Rfc8 19. Rfc1 Rxc3 20. Rxc3 Bd6 21. Ng4 Qh5 22. Bh6 Bxh2+ 23. Kf1 Ne4 24. Nxh2 Qxh6 25. Kg1 Nxc3 |
| ECO B13 in 2001 play it! haba petr defeats white's kulhanek tomas in 90 moves | 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qc7 8. Nd2 e6 9. Ngf3 Bd6 10. Bxd6 Qxd6 11. O-O O-O 12. Rae1 Bf5 13. Bxf5 exf5 14. Ne5 Ne4 15. Qc2 Rae8 16. Nd3 Re6 17. f3 Rh6 18. f4 Re6 19. Nxe4 fxe4 20. Ne5 f6 21. Ng4 f5 22. Ne5 b5 23. a3 a5 24. Qe2 b4 25. axb4 axb4 26. Ra1 Nxe5 27. fxe5 Qb6 28. Qe3 Rxe5 29. Ra6 Qxa6 30. dxe5 bxc3 31. bxc3 Qe6 32. Qf4 g6 33. Rb1 Re8 34. Kf2 Qxe5 35. Qxe5 Rxe5 36. Ke3 Re7 37. Kd4 Rd7 38. Ke5 Kg7 39. Ke6 Rc7 40. Rb3 e3 41. Kd6 e2 42. Rb1 Rxc3 43. Re1 Re3 44. Kxd5 f4 45. Kd4 g5 |
| ECO B14 in 2000 play it! haba petr defeats white's gaponenko inna in 62 moves | 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O b6 10. Bg5 Bb7 11. Rc1 Bxc3 12. Rxc3 Nbd7 13. Qe2 Qb8 14. Rd1 Ne4 15. Re3 Nxg5 16. Nxg5 Nf6 17. Nxf7 Rxf7 18. Bxe6 Bd5 19. Bxf7+ Bxf7 20. Re7 Qf8 21. Rc1 Nd5 22. Rd7 Nf4 23. Qe7 Be6 24. Qxf8+ Kxf8 25. Rcc7 Bxd7 26. Rxd7 Nd3 27. b3 Nc1 28. d5 Nxa2 29. d6 Nc1 30. Rc7 Nxb3 31. d7 Rd8 |
| ECO B13 in 1996 play it! haba petr defeats white's danek libor in 84 moves | 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qc8 8. Nd2 e6 9. Ngf3 Be7 10. O-O Bh5 11. Ne5 Nxe5 12. dxe5 Nd7 13. Qc2 Bg6 14. Nf3 a6 15. Rfe1 Qc4 16. Bxc4 Bxc2 17. Bf1 Nc5 18. Rac1 Be4 19. c4 Bxf3 20. gxf3 d4 21. Red1 O-O-O 22. Bd2 Na4 23. Ba5 Nxb2 24. Bxd8 Rxd8 25. f4 Bb4 26. Bd3 g6 27. Kf1 Nxd1 28. Rxd1 Rd7 29. Ke2 Kb8 30. Be4 Ka7 31. Rb1 Bf8 32. Rb3 Rc7 33. Bd3 Rc5 34. Be4 b6 35. Bd3 Ra5 36. Bb1 Kb7 37. Kd3 Bc5 38. Ke4 Ra4 39. Kd3 Kc6 40. Rb2 Ra3+ 41. Rb3 Ra4 42. Rb2 Kd7 |
| ECO B13 in 2001 play it! haba petr defeats white's maroszyk wieslaw in 80 moves | 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qd7 8. Nd2 e6 9. Ngf3 Bd6 10. Be5 O-O 11. Qc2 Rac8 12. Qb1 Kh8 13. O-O Bxf3 14. Nxf3 Bxe5 15. Nxe5 Nxe5 16. dxe5 Ng4 17. Qe1 Qc7 18. Qe2 Nxe5 19. Bc2 Nd7 20. Rad1 Qe5 21. Qf3 Rc4 22. g3 g6 23. Rfe1 Qf6 24. Qe3 b6 25. Bb3 Re4 26. Qh6 Rxe1+ 27. Rxe1 Rc8 28. Qe3 Kg7 29. f4 h5 30. Ba4 Nc5 31. Bc2 Nb7 32. Bd3 Nd6 33. Bb1 h4 34. g4 Rc4 35. Rf1 g5 36. Qd3 Rxf4 37. Qh7+ Kf8 38. Rxf4 Qxf4 39. Qh8+ Ke7 40. Qd4 Qc1+ |
| ECO B00 in 1993 play it! haba petr defeats white's socko bartosz in 74 moves | 1. e4 b6 2. d4 Bb7 3. Nc3 e6 4. Nf3 Bb4 5. Bd3 Nf6 6. e5 Ne4 7. Bxe4 Bxe4 8. O-O Bg6 9. Bg5 Qc8 10. Ne2 h6 11. Bh4 d5 12. Nf4 Bf5 13. Nh5 Bf8 14. Ne1 c5 15. c3 Nc6 16. g4 Bg6 17. Ng3 cxd4 18. cxd4 Qa6 19. f4 Nxd4 20. f5 Bh7 21. Kg2 Nc6 22. fxe6 fxe6 23. Rc1 Rc8 24. Nf3 Bd3 25. Re1 Bg6 26. Rxc6 Rxc6 27. Nd4 Kd7 28. Nxc6 Kxc6 29. Re3 Kb7 30. Nf5 Bc5 31. Nd6+ Kb8 32. Rc3 Qxa2 33. Qe2 Bd4 34. Qb5 Bxc3 35. Qd7 Be4+ 36. Kh3 Qa6 37. Nxe4 Qf1+ |
| ECO D02 in 1986 play it! haba petr defeats white's horak jirir in 74 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Nbd7 10. e4 Bg6 11. Bg5 Bxc3 12. bxc3 Bxe4 13. Ne5 Bg6 14. h4 Qa5 15. Nxd7 Nxd7 16. Qe3 Rfe8 17. Rfe1 Rac8 18. Qh3 h6 19. Bd2 Rcd8 20. Re2 b5 21. Bb3 Qa6 22. h5 Bf5 23. g4 bxa4 24. Re3 Bh7 25. Rxa4 Qb6 26. Rb4 Qc7 27. Rf3 c5 28. Bf4 Qa5 29. dxc5 Nxc5 30. Bc4 Rd1+ 31. Bf1 Bd3 32. Rxd3 Nxd3 33. Rd4 Nxf4 34. Rxf4 Rb8 35. Kg2 Rbb1 36. Be2 Rg1+ 37. Kf3 Qxc3+ |
| ECO D02 in 1991 play it! haba petr defeats white's kupka slavoj in 118 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Nbd7 10. e4 Bg6 11. Bd3 Re8 12. e5 Nd5 13. Nxd5 exd5 14. Bd2 Bxd2 15. Qxd2 Nf8 16. Rfe1 Ne6 17. b4 Bh5 18. Be2 a5 19. Rab1 axb4 20. Rxb4 Ra7 21. Reb1 Qa8 22. Ng5 Bxe2 23. Nxe6 fxe6 24. Qxe2 Rxa4 25. Rxb7 Rxd4 26. g3 Rf8 27. Qe3 Rd1+ 28. Rxd1 Qxb7 29. Qc5 Qc7 30. Rc1 Rc8 31. Re1 Ra8 32. Rb1 Rd8 33. Rb6 Rc8 34. Ra6 Qb7 35. Rb6 Qc7 36. Ra6 Qxe5 37. Rxc6 Rxc6 38. Qxc6 h6 39. Qe8+ Kh7 40. h4 Qe1+ 41. Kg2 Qe4+ 42. Kg1 d4 43. h5 d3 44. f3 Qe1+ 45. Kg2 Qe2+ 46. Kh3 Qxf3 47. Qg6+ Kg8 48. Qe8+ Qf8 49. Qxe6+ Qf7 50. Qc8+ Kh7 51. g4 Qd5 52. Kg3 d2 53. Qc2+ Kh8 54. Qd1 Qd3+ 55. Kf2 Kg8 56. Kg2 Kf7 57. Kf2 Ke6 58. Kg2 Ke5 59. Kf2 Kf4 |
| ECO D02 in 2000 play it! haba petr defeats white's gazarek danko in 120 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 dxc4 5. Bg2 Nc6 6. O-O Rb8 7. Nc3 b5 8. Ne5 Nxe5 9. dxe5 Nd7 10. Bc6 a6 11. Qd4 Bb7 12. Bxb7 Rxb7 13. Rd1 c5 14. Qg4 Qc7 15. Bf4 Qc6 16. f3 f5 17. exf6 Nxf6 18. Qg5 Be7 19. a3 O-O 20. Be5 Rf7 21. Qc1 Rd7 22. Rxd7 Nxd7 23. Bf4 Nf6 24. Kg2 Bd6 25. Bg5 Nd5 26. Ne4 Be5 27. Bd2 Nf6 28. Nf2 Bd4 29. Nh3 h6 30. Qc2 e5 31. e4 Ne8 32. Rf1 Nd6 33. Ng1 Qb7 34. Ne2 Rd7 35. Rd1 Qc6 36. Rf1 Rb7 37. Rd1 Rf7 38. Rf1 Qb6 39. Nc3 Qb7 40. Nd5 Rd7 41. g4 Nf7 42. h4 Qc6 43. h5 Qe6 44. Rh1 Nd6 45. Kg3 Ne8 46. g5 hxg5 47. Bxg5 Nc7 48. Nxc7 Rxc7 49. Rh4 Kh7 50. Rg4 Rf7 51. Qg2 c3 52. bxc3 Bxc3 53. Kh2 b4 54. axb4 cxb4 55. Bc1 Qf6 56. Qg3 Rd7 57. Rg6 Qf7 58. Qg4 Rd1 59. Rxa6 Rxc1 60. h6 Qf4+ |
| ECO D03 in 1990 play it! haba petr defeats white's klaric zlatko in 76 moves | 1. d4 d5 2. Nf3 Nf6 3. Bg5 Ne4 4. Bf4 c5 5. e3 Qb6 6. Nc3 Nxc3 7. bxc3 Qa5 8. Qd2 e6 9. c4 Qxd2+ 10. Kxd2 dxc4 11. Bxc4 a6 12. a4 Nc6 13. c3 cxd4 14. exd4 Bd7 15. Rhb1 Na5 16. Bd3 Rc8 17. Be4 Bc6 18. Bxc6+ Rxc6 19. Kd3 f6 20. c4 b6 21. d5 Rxc4 22. Bd2 exd5 23. Rxb6 Nc6 24. Rxa6 Kf7 25. Ra8 g5 26. Be3 Bg7 27. Rxh8 Bxh8 28. a5 f5 29. Ra3 f4 30. Bb6 Bb2 31. Nxg5+ Kg6 32. Rb3 Ne5+ 33. Kd2 Bc1+ 34. Kd1 Kxg5 35. a6 f3 36. a7 Bf4 37. Be3 fxg2 38. f3 Bxe3 |
| ECO D02 in 1998 play it! haba petr defeats white's portisch ferenc in 106 moves | 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Qb6 5. Nc3 Bd7 6. Rb1 e6 7. Be2 Be7 8. O-O O-O 9. Ne5 cxd4 10. exd4 Rc8 11. a3 Be8 12. Bd3 Nc6 13. Ne2 Nxe5 14. Bxe5 Bb5 15. c3 Bxd3 16. Qxd3 Nd7 17. Bg3 a5 18. Qf3 Qa7 19. Nf4 b5 20. Qe2 Qb7 21. Nxe6 fxe6 22. Qxe6+ Kf8 23. Rfe1 Nf6 24. Re5 b4 25. axb4 axb4 26. Rbe1 bxc3 27. bxc3 Ba3 28. Bh4 Ra6 29. Qf5 g6 30. Qf4 Qf7 31. Qf3 Rd8 32. Qd3 Rda8 33. h3 Kg7 34. R5e3 Bf8 35. Rf3 Qd7 36. c4 dxc4 37. Qxc4 Nd5 38. Bg3 Ra1 39. Be5+ Kg8 40. Rxa1 Rxa1+ 41. Kh2 Ra8 42. Rf6 Qb7 43. f4 Rd8 44. Rc6 Qf7 45. Qa4 Bg7 46. Qa5 Re8 47. Qd2 Bh6 48. g3 Ra8 49. Rc2 Bf8 50. Rb2 Ra3 51. g4 Ne3 52. Qe2 Nc4 53. Rc2 Nxe5 |
| ECO D01 in 2000 play it! haba petr defeats white's bachmayer josef in 72 moves | 1. d4 d5 2. Nc3 e6 3. e4 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Nf3 b6 8. a4 Ba6 9. Bb5+ Bxb5 10. axb5 a5 11. bxa6 Rxa6 12. Rxa6 Nxa6 13. Qe2 Nb8 14. Qb5+ Nd7 15. O-O Ne7 16. Bg5 Nc6 17. h4 O-O 18. h5 h6 19. Bc1 Ra8 20. Qe2 Ra2 21. g4 cxd4 22. cxd4 Ne7 23. Ne1 Qc4 24. Qe3 Nb8 25. Bd2 Nbc6 26. c3 Nxe5 27. dxe5 Qxg4+ 28. Ng2 Nf5 29. Qf4 Qxh5 30. Be3 b5 31. Bd4 b4 32. cxb4 g5 33. Qh2 Qxh2+ 34. Kxh2 Nxd4 35. Rb1 Nf3+ 36. Kg3 Nd2 |
| ECO D10 in 2005 play it! haba petr defeats white's lechtynsky jiri in 74 moves | 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nf3 Nf6 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Qb3 Bb4 9. Bb5 O-O 10. O-O Bxc3 11. Qxc3 Ne4 12. Qa3 Rc8 13. Rfc1 g5 14. Bxc6 bxc6 15. Bg3 f6 16. Qxa7 h5 17. h4 g4 18. Nh2 Nxg3 19. fxg3 Qd6 20. Nf1 Ra8 21. Qc5 Qxc5 22. Rxc5 Rfb8 23. e4 Bxe4 24. Nd2 Bf5 25. b3 Rb4 26. Rxc6 Rxd4 27. Nf1 Kf7 28. a4 Rd3 29. Rb6 Rc8 30. Re1 Be4 31. Kf2 f5 32. a5 d4 33. a6 Rc2+ 34. Re2 Rdc3 35. Rxc2 Rxc2+ 36. Ke1 Rc1+ 37. Ke2 d3+ |
| ECO D31 in 1996 play it! haba petr defeats white's hrivnak daniel in 78 moves | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e4 b5 6. a4 Bb4 7. Be2 Nf6 8. Qc2 Bb7 9. e5 Nd5 10. O-O a6 11. Bd2 Nxc3 12. bxc3 Be7 13. Qe4 Nd7 14. Qg4 Kf8 15. Rfd1 h6 16. Be3 Nb6 17. Nd2 h5 18. Qh3 Nxa4 19. Ne4 Nb2 20. Rd2 Nd3 21. f4 c5 22. Nxc5 Bxc5 23. dxc5 Be4 24. Rf1 Qd5 25. Bxd3 cxd3 26. Rb1 Bf5 27. Qh4 Qc4 28. Rb4 Qxc3 29. Rd4 Kg8 30. Qe7 Kh7 31. Qxf7 Rhd8 32. Qxh5+ Kg8 33. Rd6 b4 34. Qd1 b3 35. Rb6 Rab8 36. Qb1 a5 37. Kf2 a4 38. Rxb8 Rxb8 39. g4 Be4 |
| ECO D10 in 1987 play it! haba petr defeats white's chekhov valery by checkmate in 94 moves | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 c4 11. Bc2 e5 12. O-O Bd6 13. Ne2 Nc5 14. Ng3 O-O 15. b3 a5 16. bxc4 b4 17. Bg5 h6 18. Be3 Qc7 19. Nh4 Re8 20. Nhf5 Bxf5 21. Nxf5 g6 22. Nxd6 Qxd6 23. f3 a4 24. Rb1 Reb8 25. Kh1 h5 26. Bxc5 Qxc5 27. Bxa4 Qxc4 28. Bb3 Qa6 29. Qd2 Qd6 30. Rfc1 Rc8 31. h3 h4 32. Qg5 Rc3 33. Qxh4 Rac8 34. Rd1 Kg7 35. Qf2 Nh5 36. g3 Qf6 37. Kg2 Qg5 38. h4 Nf4+ 39. Kf1 Qh5 40. g4 Qh6 41. d6 Rh8 42. d7 Qxh4 43. Qxh4 Rxh4 44. d8=Q Rxf3+ 45. Ke1 Rh1+ 46. Kd2 Rh2+ 47. Ke1 Re2# |
| ECO D02 in 1997 play it! haba petr defeats white's trichkov vasil in 48 moves | 1. d4 d5 2. Nf3 c6 3. c4 e6 4. e3 f5 5. Be2 Nf6 6. O-O Bd6 7. b3 Qe7 8. a4 a5 9. Ba3 Bxa3 10. Nxa3 O-O 11. Nc2 b6 12. Nce1 Na6 13. Ne5 Bb7 14. Rc1 c5 15. N1f3 Rac8 16. Qd2 cxd4 17. Qxd4 Nc5 18. Qb2 dxc4 19. Bxc4 Nd5 20. Rfd1 f4 21. exf4 Nxf4 22. Qd2 Rf5 23. Qe3 Rcf8 24. Nd4 Qg5 |
| ECO D19 in 1992 play it! haba petr defeats white's wohlfahrt herber in 114 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Nbd7 10. Ne5 h6 11. Rd1 Bh7 12. Na2 Bd6 13. h3 Qe7 14. Nxd7 Nxd7 15. e4 Qh4 16. Nc3 Bg6 17. Qg4 Qxg4 18. hxg4 Bb4 19. f3 a5 20. Be3 Rfd8 21. Ne2 e5 22. dxe5 Nxe5 23. Bb3 Nd3 24. Nf4 Bc5 25. Bxc5 Nxc5 26. Bc4 Kf8 27. b3 Bh7 28. Kf2 g5 29. Nd3 Nxd3+ 30. Rxd3 Rxd3 31. Bxd3 f6 32. Rd1 Rd8 33. Ke3 Bg8 34. Bc2 Rxd1 35. Bxd1 Ke7 36. g3 Kd6 37. Kd4 Be6 38. Bc2 b5 39. Bd1 Bd7 40. Bc2 Bc8 41. Bd3 Bd7 42. Bc2 c5+ 43. Kc3 c4 44. bxc4 bxa4 45. Kd4 a3 46. c5+ Kc7 47. Bb3 Ba4 48. Bd5 Bd1 49. f4 gxf4 50. gxf4 Bxg4 51. Kc3 Bf3 52. Kb3 h5 53. Kxa3 h4 54. Be6 Bxe4 55. Bh3 Kc6 56. Ka4 Kxc5 57. Kxa5 f5 |
| ECO D02 in 2006 play it! haba petr defeats white's vokoun jan in 100 moves | 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Qc2 dxc4 5. Qxc4 Bf5 6. Nc3 e6 7. g3 Be7 8. Bg2 Nbd7 9. O-O O-O 10. Re1 Ne4 11. Rd1 Nxc3 12. Qxc3 Be4 13. b3 a5 14. a3 Nf6 15. Ne5 Bxg2 16. Kxg2 Qd5+ 17. f3 Qb5 18. Qc4 Rfd8 19. Bb2 Nd5 20. Rd3 f6 21. Ng4 a4 22. e4 Nc7 23. Rc1 axb3 24. Rxb3 Qxc4 25. Rxc4 Nb5 26. a4 Nd6 27. Rcb4 b5 28. axb5 cxb5 29. e5 fxe5 30. dxe5 Nc4 31. Rxb5 Rd2+ 32. Kh3 h5 33. Nf6+ gxf6 34. exf6 Bf8 35. Bc1 Rd5 36. Rb7 Nd6 37. Rc7 Rc8 38. Rxc8 Nxc8 39. g4 Kf7 40. Kh4 Nd6 41. Bg5 hxg4 42. fxg4 Ne4 43. Rb7+ Kg6 44. Bf4 Nxf6 45. Rb6 Kf7 46. h3 Be7 47. Rb7 Rd7 48. Rb1 Kg6 49. Re1 Nh5+ 50. g5 Nxf4 |
| ECO D30 in 1998 play it! haba petr defeats white's schmidt peter in 82 moves | 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Qc2 Nf6 5. Bg5 Nbd7 6. e3 Qa5+ 7. Nbd2 Ne4 8. Bf4 Bb4 9. Bd3 Nxd2 10. Nxd2 e5 11. dxe5 Nc5 12. Ke2 Nxd3 13. Qxd3 Bxd2 14. Qxd2 Qxd2+ 15. Kxd2 dxc4 16. e4 Be6 17. Rhd1 O-O 18. Kc3 c5 19. Be3 Rfc8 20. f4 g6 21. a4 Rab8 22. Rd6 b5 23. axb5 Rxb5 24. Kc2 Rcb8 25. Bc1 Rb4 26. Rxa7 c3 27. Kxc3 Rxe4 28. Ra3 Re2 29. Rd2 Re1 30. Rc2 Bf5 31. Kd2 Rg1 32. Rxc5 Rxg2+ 33. Ke3 Rxh2 34. Rca5 Kg7 35. Ra8 Rb4 36. R8a4 Rxa4 37. Rxa4 Rc2 38. Ra1 h5 39. b4 h4 40. Bd2 h3 41. b5 Rb2 |