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tromp / ChessPositionRanking

Software suite for ranking chess positions and accurately estimating the number of legal chess positions
MIT License
138 stars 7 forks source link

n1R2b2/2P1Bq1b/2qNnRnP/R2rBr2/2b2p2/3B4/N2k2N1/N1N1QK1R b - - 0 1 #883

Closed tromp closed 3 years ago

tromp commented 3 years ago

n1R2b2/2P1Bq1b/2qNnRnP/R2rBr2/2b2p2/3B4/N2k2N1/N1N1QK1R b - - 0 1

img

Single Check wx 0 wp 2 wpr 6 wpx 0 maxuwp 2 minopp 0 bx 4 bp 1 bpr 3 bpx 4 maxubp 1 minopp 0

isaacg1 commented 3 years ago

Proof game:

  1. a4 b5 2. d4 c5 3. f4 e5 4. g4 h5 5. axb5 a5 6. dxc5 d5 7. fxe5 g5 8. gxh5 f5 9. b6 a4 10. b7 Na6 11. b8=B a3 12. b4 a2 13. Nc3 f4 14. Rb1 a1=N 15. Bh3 d4 16. Kf1 d3 17. Qe1 d2 18. b5 d1=B 19. e4 g4 20. b6 g3 21. b7 Bdg4 22. Ba7 Bgd7 23. Ke2 g2 24. Nf3 g1=Q 25. b8=R Qg7 26. Kf1 Bb7 27. c6 Nb3 28. c7 Nbc5 29. c8=R Ke7 30. e6 Kd6 31. e7 Rh6 32. Nh4 Ke5 33. Ng2 Kd4 34. e8=N Rf6 35. Qh4 Qc7 36. Na2 Qa5 37. c4 Kd3 38. Ba3 Kd2 39. Qg3 Qf7 40. h6 Ne7 41. h7 Rd6 42. h8=N Na4 43. c5 Bd5 44. Rd8 Bf5 45. Bg4 Bc4+ 46. Be2 Nc7 47. Ng6 Ne6 48. Bd3 Rd5 49. h4 Ng7 50. h5 Nc6 51. h6 Qb6 52. e5 Qa6 53. Rbc8 Rb8 54. e6 Ne5 55. Nc7 Rb5 56. e7 Nf3 57. N6h4 Bh7 58. Ne1 Rf5 59. Bb2 Ne5 60. c6 Ng6 61. Ne8 Rbd5 62. Nd6 Ne6 63. c7 Qc6 64. e8=N Nb6 65. Nf6 Na8 66. Nb5 Qg8 67. Bc5 Qf7 68. Be7 Qg8 69. Na3 Nd4 70. Rd6 Qf7 71. Ng4 Qg8 72. Rf6 Ne6 73. Nhg2 Qf7 74. Nec2 Qg8 75. Na1 Qf7 76. Nf2 Qg8 77. Nb5 Qf7 78. Nd6 Qg8 79. Nd1 Qf7 80. Ndc3 Qg8 81. Ne2 Qf7 82. Nec1 Qg8 83. Be5 Qf7 84. Rb5 Qg8 85. Ra5 Qf7 86. Qe1#
tromp commented 3 years ago

Verified. Thanks, @isaacg1 !