Lyudmil Tsvetkov wrote:ok, it sees high scores after white's g4, followed by Rd3 to swing to h3, have to feed it manually to SF, seems to be too deep for it, but is it won?
in one of the lines I get here:
[d]8/3R1pkp/5b2/5K2/5P2/8/7P/8 w - - 0 29
anyone with 8-men?
the position is clearly won with latest dev-SF-McB apparently with Rd6, Rd1 an Rd2, Rd6 being shorter to a tablebase mate ( may not be a shorter mate).
Note - it's long drawn out affair with deep zugswang and it just misses a draw by the 50 move rule. I used the position cited - so based on moves prior to the position given, it could be a draw.
[d]8/3R1pkp/5b2/5K2/5P2/8/7P/8 w - - 0 29
Code: Select all
dep score nodes time (not shown: tbhits knps seldep)
50 +132.62 6.76G 3:09.02 Rd6 Bh4 Rd2 Be7 Rg2+ Kf8 Ke5 Bh4 Rg1 Bd8 Rd1 Bh4 f5 Ke7 Rd6 f6+ Kd5 Bf2 Rc6 Kf7 Rc7+ Kg8 Ke6 Bd4 Rf7 Ba1 Rxf6 Bd4 Rf7 Bb6 f6 h6 Rg7+ Kh8 Kf5 Be3 Kg6 Bf4 f7 Bxh2
49 +132.61 2.43G 1:11.06 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bb4 Kg5 Kg7 f5 f6+ Kf4+ Kf7 Ke4 Bd6 Kd5 Be5 Re2 Bc3 Ra2 Be5 Ra7+ Kg8 Ke6 Bd4 Rf7 Bb6 Rxf6 Kg7 Rf7+ Kg8 f6 h6 Rg7+ Kh8 Kf7 Be3 Kg6 Bf4 f7 Bxh2
48 +132.61 1.26G 0:37.99 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bb4 Kg5 Kg7 f5 f6+ Kf4+ Kf7 Ke4 Bd6 Kd5 Be5 Ra2 Bb8 Rb2 Be5 Rb7+ Kg8 Ke6 Bc3 Rf7 Be1 Kxf6 Bc3+ Ke6 h6 Rb7 Bd4 f6 Bc5 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
47 +132.60 906.6M 0:27.46 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Ra4 Kg7 Ke6 Be5 Ra7+ Kh6 Rf7 Bc3 Rxf6+ Kg5 Rf8 Kh5 f6 Bb4 Rh8 Kg6 f7 Kg7 Rg8+ Kh6 f8=Q+ Bxf8
46 +132.60 769.0M 0:23.18 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Ra4 Kg7 Ke6 Be5 Ra7+ Kh6 Rf7 Bc3 Rxf6+ Kg5 Rf8 Kh5 f6 Bb4 Rh8 Kg6 f7 Kg7 Rg8+ Kh6 f8=Q+ Bxf8
45 +132.60 739.0M 0:22.28 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Ra4 Kg7 Ke6 Be5 Ra7+ Kh6 Rf7 Bc3 Rxf6+ Kg5 Rf8 Kh5 f6 Bb4 Rh8 Kg6 f7 Kg7 Rg8+ Kh6 f8=Q+ Bxf8
44 +132.60 662.5M 0:19.90 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Ra2 Kg7 Kd5 Kf7 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
43 +132.60 639.2M 0:19.18 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Ra2 Kg7 Kd5 Kf7 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
42 +132.60 611.4M 0:18.33 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
41 +132.60 593.0M 0:17.74 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
40 +132.60 589.6M 0:17.63 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
39 +132.60 589.3M 0:17.62 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
38 +132.60 589.2M 0:17.61 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
37 +132.60 589.1M 0:17.61 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
36 +132.60 589.0M 0:17.61 Rd2 Ba1 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bc3 f5 Be5 Kg5 f6+ Kg4 Kg7 Kf3+ Kf7 Ke4 Bb8 Kd5 Be5 Ra2 Bb8 Rb2 Be5 Rb7+ Kg8 Ke6 Bd4 Rf7 Be5 Rxf6 Bd4 Rf7 Bb6 Rb7 Bc5 f6 h6 f7+ Kf8 Rb8+ Kg7 f8=Q+ Bxf8
36 +128.35! 345.0M 0:10.26 Rd1!
36 +102.76! 337.0M 0:10.03 Rd1!
36 +82.30! 327.2M 0:09.76 Rd1!
36 +65.94! 317.1M 0:09.47 Rd1!
36 +52.87! 305.0M 0:09.13 Rd1!
36 +42.44! 296.5M 0:08.89 Rd1!
36 +34.10! 287.4M 0:08.64 Rd1!
36 +27.45! 277.1M 0:08.36 Rd1!
36 +22.15! 266.6M 0:08.07 Rd1!
36 +17.92! 256.7M 0:07.78 Rd1!
36 +14.55! 240.8M 0:07.32 Rd1!
36 +11.87! 224.4M 0:06.82 Rd1!
36 +9.75! 205.2M 0:06.24 Rd1!
36 +8.06! 186.5M 0:05.68 Rd1!
36 +6.72! 158.8M 0:04.85 Rd1!
36 +5.67! 129.2M 0:03.96 Rd2!
36 +4.85! 111.1M 0:03.41 Rd2!
35 +2.39 34.7M 0:01.12 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Rc2 Bg7+ Kg5 Bd4 Rd2 Ba1 Kf5 Kg7 Rg2+ Kf8 Ra2 Bd4 Rd2 Bc3 Rd3 Ba1 Rd1 Bc3 Rc1 Bb2 Rc8+ Kg7 Rc2 Bd4 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kf6 Kh6
34 +2.39 30.8M 0:01.00 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Rc2 Bg7+ Kg5 Bd4 Rd2 Ba1 Rd1 Bc3 Rd3 Bb2 Rb3 Bd4 Kf5 Kg7 Rg3+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Rg2 Bd4 Re2 Bg7+ Kg5 Ba1 Rg2 Kg7
33 +2.39 25.3M 0:00.84 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Rc2 Bg7+ Kg5 Bd4 Rd2 Ba1 Rd1 Bc3 Rd3 Bb2 Rb3 Bd4 Kf5 Kg7 Rg3+ Kf8 Rd3 Ba1 Rh3 Kg7 Rg3+ Kf8 Kg4 Kg7 Kh5+ Kh8 Kh6 Bd4 Ra3 Bg7+ Kg5 Bd4
32 +2.39 17.3M 0:00.58 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Rc2 Bg7+ Kg5 Bd4 Rd2 Ba1 Rd1 Bc3 Rd3 Bb2 Rb3 Bd4 Kf5 Kg7 Rg3+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Re3 Bg7+ Kg5 Ba1 Kf5 Kg7 Rg3+ Kf8
31 +2.39 15.0M 0:00.51 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Rc2 Bg7+ Kg5 Bd4 Rd2 Ba1 Rd1 Bc3 Rd3 Bb2 Rb3 Bd4 Kf5 Kg7 Rg3+ Kf8 Kg4 Kg7 Kh5+ Kh8 Kh6 Bc5 Rd3 Bf8+ Kg5 Kg7 Kf5 Be7
30 +2.39 12.9M 0:00.44 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Ra2 Bg7+ Kg5 Bd4 Rd2 Ba1 Rd1 Bc3 Rd3 Bb2 Kh6 Bg7+ Kh5 Ba1 Rb3 Bd4 Kh6 Bg7+ Kg5 Bd4 Kf5 Kg7 Rg3+ Kf8 Kg4
29 +2.39 11.3M 0:00.39 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Ra2 Bg7+ Kg5 Bd4 Rd2 Ba1 Kf5 Kg7 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Rg3 Bb2 Kh6 Bd4 Ra3 Bg7+ Kg5 Bd4 Rd3 Bb2
28 +2.39 9.30M 0:00.32 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Ra2 Bg7+ Kg5 Bd4 Rd2 Ba1 Kf5 Kg7 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Rg3 Bb2 Kh6 Bd4 Rd3 Bg7+ Kg5 Bb2
27 +2.39 8.99M 0:00.31 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Ra2 Bg7+ Kg5 Bd4 Rd2 Ba1 Rg2 Kg7 Kf5+ Kf8 Kg4 Kg7 Kh5+ Kh8 Rg3 Bd4 Kh6 Bc5 Rg2 Bd4 Re2
26 +2.39 7.97M 0:00.27 Rd2 Bc3 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Ra2 Bg7+ Kg5 Bd4 Rd2 Ba1 Kf5 Kg7 Rd1 Bc3 Rg1+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bd2 Kg5
25 +2.39 7.29M 0:00.25 Rd2 Bc3 Rc2 Bd4 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Ra2 Bg7+ Kg5 Bd4 Rd2 Ba1 Kf5 Kg7 Rg2+ Kh8 Rg1 Bc3 Rc1 Bb2 Rc2 Bd4 Rg2
24 +2.39 6.60M 0:00.23 Rd2 Bc3 Rc2 Bd4 Rg2+ Kf8 Kg5 Kg7 Kh5+ Kh8 Kh6 Bf6 Re2 Bg7+ Kg5 Ba1 Ra2 Bc3 Rc2 Bd4 Rd2 Ba1 Rd1 Bc3 Rd3 Bb2 Rb3 Ba1
23 +2.32 3.94M 0:00.14 Rd2 Be7 Re2 Bd8 Rb2 h6 Rb3 Ba5 Rd3 Be1 Rg3+ Kf8 Kf6 Bf2 Rh3 Bd4+ Kf5 Kg7 Rg3+ Kf8 Rg2 Bb6 Rc2 Kg7 h4 Bd8 h5 Bh4 Rh2 Be1 Rg2+ Kf8
22 +2.32 3.64M 0:00.13 Rd2 Be7 Re2 Bd8 Rb2 h6 Rb3 Ba5 Rd3 Be1 Rg3+ Kf8 Kf6 Bf2 Rh3 Bd4+ Kf5 Kg7 Rg3+ Kf8 Rg2 Bb6 Rc2 Kg7 h4 Bd8 h5 Bh4
21 +2.32 3.41M 0:00.12 Rd2 Be7 Re2 Bd8 Rb2 h6 Rb3 Ba5 Rd3 Be1 Rg3+ Kf8 Kf6 Bf2 Rh3 Bd4+ Kf5 Kg7 Rg3+ Kf8 Rg2 Bb6 Rc2 Kg7
20 +2.32 2.76M 0:00.10 Rd2 Be7 Re2 Bd8 Rb2 Be7 Rg2+ Kf8 Rg3 Bc5 Rd3 Bf2 Kg5 Kg7 h4 h6+ Kg4 Kf6 Rd6+ Kg7 Rd7 Be1 h5 Kf6
19 +2.05 1.07M 0:00.04 Rd2 Bh4 Rb2 Kf8 Rb7 Kg7 Rb3 Be1 Rh3 Bf2 Ke5 Be1 Rd3 Kf8 Kf5 Kg7 Rb3 Bh4 Rb7
18 +2.05 516460 0:00.02 Rd2 Bc3 Rd3 Be1 Rd7 Bh4 Rd2 Kf8 Rg2 Be1 Rb2 Kg7 Rb3 Bh4 Rh3 Bf2 Ke5 Be1
17 +2.05 456033 0:00.02 Rd2 Bc3 Rd3 Be1 Rh3 Bf2 Ke5 Be1 Ra3 Bh4 Kf5 Bf2 Rh3 Bd4 Rg3+ Kf8 Rd3 Bf2
16 +2.05 418384 0:00.02 Rd2 Bc3 Rd3 Be1 Rh3 Bf2 Ke5 Be1 Ra3 Bf2 Ra2 Bh4 Rg2+ Kf8 Kf5 Be1 Rb2 Kg7
15 +2.05 403225 0:00.02 Rd2 Bc3 Rd3 Be1 Rh3 Bf2 Ke5 Be1 Ra3 Bf2 Ra2 Bh4 Rg2+ Kf8 Rb2 Kg7 Kf5 Kf8
14 +2.05 390622 0:00.02 Rd2 Bc3 Rd3 Be1 Rh3 Bf2 Ke5 Be1 Ra3 Bf2 Rd3 Bh4 Rb3 Bf2
13 +2.05 287051 0:00.01 Rd2 Bh4 Rg2+ Kf8 Rb2 Kg7 Rb3 Be1 Ke5 Bf2 Rh3 Be1 Ra3
12 +2.05 272619 0:00.01 Rd2 Bh4 Rg2+ Kf8 Rb2 Kg7 Rb3 Bf2 Ke5 Bh4 Rd3 Bf6+ Kf5 Bh4 Rh3
11 +2.13 139840 0:00.01 Rd2 Be7 Rd7 Bb4 Rd3 Be1 Rb3 Bh4 Rh3 Be7 Rg3+ Kf8
10 +2.07 126391 0:00.01 Rd2 Bh4 Rd3 Be7 Rb3 h5 Rb7 Bc5 Kg5 Bd6
9 +2.07 67730 0:00.00 Rd2 Bh4 Rg2+ Kf8 Re2 Kg7 Rd2 Be7 Rd3 Bh4
8 +2.07 37373 0:00.00 Rd1 Bh4 Rd2 Be7 Rd3 Bh4 Rd7 Bf6
7 +2.12 15201 0:00.00 Rd1 Be7 Rd3 Bh4 Rd7 Bf6 h3
6 +2.12 10609 0:00.00 Rd1 Be7 Rd3 h5 Rd5 Kf8
5 +2.10 7761 0:00.00 Rd2 Be7 Rd3 Bc5 Rc3
4 +2.31 2634 0:00.00 Rd2 Bc3 Rc2 Be1
3 +2.07 1637 0:00.00 Rb7 Bc3 h4
2 +6.52 920 0:00.00 Rd2 h5
1 +6.52 374 0:00.00 Rd1
[pgn][Event "?"]
[Site "?"]
[Date "?"]
[Round "-"]
[White "?"]
[Black "?"]
[Result "*"]
[FEN "8/3R1pkp/5b2/5K2/5P2/8/7P/8 w - - 0 1"]
[SetUp "1"]
1. Rd6 Bh4 2. Rd1 Bf2 3. Ke5 Bh4 4. Rg1+ Kf8 5. Rg2 Bd8 6. Rd2 Bh4 7. f5
Ke7 8. Rd6 f6+ 9. Kd5 Bf2 10. Rc6 Kf7 11. Rc7+ Kg8 12. Ke6 Bd4 13. Rf7 Bb6
14. Rd7 Ba5 15. Kxf6 Bc3+ 16. Ke6 h6 17. f6 Bb4 18. f7+ Kf8 19. Rd8+ Kg7
20. f8=Q+ Bxf8 21. Rd7+ Kg8 22. Kf6 Bb4 23. Rd8+ Kh7 24. Rd7+ Kg8 25. h3
Bc3+ 26. Ke6 h5 27. Rb7 h4 28. Rc7 Ba1 29. Rb7 Bd4 30. Rb4 Ba1 31. Rb3 Bg7
32. Rb5 Ba1 33. Rc5 Bb2 34. Rc8+ Kh7 35. Rc7+ Kg6 36. Rc4 Bf6 37. Ra4 Bd8
38. Ra8 Bg5 39. Ra6 Bc1 40. Ra8 Bb2 41. Rd8 Ba1 42. Rf8 Bb2 43. Rc8 Ba1 44.
Rb8 Bc3 45. Rg8+ Kh5 46. Kf7 Ba1 47. Rf8 Bd4 48. Ke6 Bg7 49. Rc8 Kg5 50.
Rc7 Ba1 51. Rc4 Bb2 52. Rg4+ Kh5 53. Kf5 Bc1 54. Rb4 Be3 55. Rb8 Bc1 56.
Rb5 Bd2 57. Rd5 Bg5 58. Ke4 Kg6 59. Kf3 Be7 60. Kg4 Kf6 61. Rd2 Kg6 62. Re2
Bf6 63. Re4 Bg5 64. Re6+ Kf7 65. Kf5 Bf4 66. Re4 Bg3 67. Kg5 Kg7 68. Re7+
Kf8 69. Kf6 Bf2 70. Re4 Bb6 71. Ke6 Bd8 72. Rg4 Be7 73. Rf4+ Ke8 74. Ra4
Bg5 75. Ra8+ Bd8 76. Rc8 Kf8[/pgn]