More syzygy questions

[bob]

Does anyone have any sort of collection of positions with cursed wins and blessed losses? Ideally I'd like positions which get to 5 piece files quickly (my personal macbook has 128gb SSD so I can't store the complete 6 piece files unfortunately).

I want to make sure I am handling these odd cases correctly. IE I want to make certain that "swindle mode" kicks in if the only choice is a cursed win or worse, to search just cursed win positions to give the opponent a chance to make a mistake. Blessed losses are pretty much irrelevant to me other than to compare Nalimov results to syzygy since Nalimov will claim a forced loss which would be wrong...

So far, I miss the mate announcements, but otherwise, it looks pretty reasonable. And it is certainly much faster accessing WDL than Nalimov, where with Nalimov I had set min remaining depth to probe to 6, while for syzygy I am running at 0, 1 or 2 and testing them....

[MikeB]

Does anyone have any sort of collection of positions with cursed wins and blessed losses? Ideally I'd like positions which get to 5 piece files quickly (my personal macbook has 128gb SSD so I can't store the complete 6 piece files unfortunately).

I want to make sure I am handling these odd cases correctly. IE I want to make certain that "swindle mode" kicks in if the only choice is a cursed win or worse, to search just cursed win positions to give the opponent a chance to make a mistake. Blessed losses are pretty much irrelevant to me other than to compare Nalimov results to syzygy since Nalimov will claim a forced loss which would be wrong...

So far, I miss the mate announcements, but otherwise, it looks pretty reasonable. And it is certainly much faster accessing WDL than Nalimov, where with Nalimov I had set min remaining depth to probe to 6, while for syzygy I am running at 0, 1 or 2 and testing them....

When you create the 5 man TB's , there is text file that would have the longest cursed win and cursed loos for each position. I'm re-creating the 5 man tbs now.

But here is one I found the web.
[d]8/8/8/8/1p2P3/4P3/1k6/3K4 w - - 0 1
best play with 50 move rule turned off. I have customized version of polyglot that allows you to play it out - otherwise polyglot will claim the draw on behalf of the engine even if the engine does;t know about the 50 move rule.
Edit: this is also one position where old crafty with Nalimov will say it's a win, but it's not with the 50 move rule.

[pgn][Event "Computer Chess Game"]
[Site "Mac-Pro.local"]
[Date "2016.07.09"]
[Round "-"]
[White "Komodo 10 64-bit"]
[Black "Komodo 10 64-bit"]
[Result "1-0"]
[TimeControl "9+0"]
[FEN "8/8/8/8/1p2P3/4P3/1k6/3K4 w - - 0 1"]
[SetUp "1"]

1. e5 {+1010.00/5} Ka2 {-1010.00/16 0.2} 2. e6 {+1010.00/5 0.1} b3
{-1010.00/5 0.1} 3. e7 {+1010.00/5 0.1} b2 {-1010.00/5 0.1} 4. e8=Q
{+1010.00/5 0.1} b1=Q+ {-1010.00/5 0.1} 5. Kd2 {+1010.00/5 0.1} Qb2+
{-1010.00/15 0.3} 6. Kd3 {+1010.00/5 0.1} Qb1+ {-1010.00/5 0.1} 7. Kd4
{+1010.00/5 0.1} Qb2+ {-1010.00/5 0.1} 8. Ke4 {+1010.00/5 0.1} Qe2
{-1010.00/5 0.1} 9. Kf4 {+1010.00/5 0.1} Qf2+ {-1010.00/18 0.8} 10. Kg5
{+1010.00/5 0.1} Qg1+ {-1010.00/18 0.3} 11. Kf6 {+1010.00/14 0.2} Qf2+
{-1010.00/5 0.1} 12. Kg7 {+1010.00/5 0.1} Qb2+ {-1010.00/5 0.1} 13. Kh7
{+1010.00/5 0.1} Qb7+ {-1010.00/5 0.1} 14. Kh6 {+1010.00/5 0.1} Qb6+
{-1010.00/5 0.1} 15. Kg5 {+1010.00/5 0.1} Kb3 {-1010.00/5 0.1} 16. Kf5
{+1010.00/5 0.1} Qc5+ {-1010.00/5 0.1} 17. Kf6 {+1010.00/5 0.1} Kc2
{-1010.00/5 0.1} 18. Qe4+ {+1010.00/5 0.1} Kc1 {-1010.00/5 0.1} 19. Kf7
{+1010.00/5 0.1} Qh5+ {-1010.00/5 0.1} 20. Ke7 {+1010.00/5 0.1} Qc5+
{-1010.00/5 0.1} 21. Kd7 {+1010.00/5 0.1} Qa7+ {-1010.00/5 0.1} 22. Ke8
{+1010.00/5 0.1} Qb8+ {-1010.00/5 0.1} 23. Kf7 {+1010.00/5 0.1} Qc7+
{-1010.00/5 0.1} 24. Qe7 {+1010.00/5 0.1} Qc4+ {-1010.00/5 0.1} 25. Qe6
{+1010.00/5 0.1} Qc7+ {-1010.00/5 0.1} 26. Kf6 {+1010.00/5 0.1} Qc3+
{-1010.00/5 0.1} 27. Qe5 {+1010.00/5 0.1} Qc6+ {-1010.00/17 0.3} 28. Ke7
{+1010.00/5 0.1} Qb7+ {-1010.00/5 0.1} 29. Kd8 {+1010.00/5 0.1} Qa8+
{-1010.00/5 0.1} 30. Kd7 {+1010.00/5 0.1} Qa4+ {-1010.00/5 0.1} 31. Ke7
{+1010.00/5 0.1} Qb4+ {-1010.00/17 0.6} 32. Ke6 {+1010.00/5 0.1} Qc4+
{-1010.00/5 0.1} 33. Qd5 {+1010.00/5 0.1} Qc8+ {-1010.00/5 0.1} 34. Ke7
{+1010.00/16 0.3} Qc7+ {-1010.00/5 0.1} 35. Kf6 {+1010.00/5 0.1} Qc3+
{-1010.00/5 0.1} 36. Qd4 {+1010.00/5 0.1} Qc8 {-1010.00/5 0.1} 37. Kg7
{+1010.00/18 0.5} Qb7+ {-1010.00/18 0.4} 38. Kg6 {+1010.00/19 0.5} Qc6+
{-1010.00/5 0.1} 39. Kg5 {+1010.00/18 0.7} Qg2+ {-1010.00/5 0.1} 40. Kf4
{+1010.00/20 1.3} Qf1+ {-1010.00/19 1.3} 41. Ke4 {+1010.00/5 0.1} Qg2+
{-1010.00/5 0.1} 42. Ke5 {+1010.00/5 0.1} Qg5+ {-1010.00/5 0.1} 43. Ke6
{+1010.00/5 0.1} Qg8+ {-1010.00/5 0.1} 44. Kd7 {+1010.00/5 0.1} Qf7+
{-1010.00/5 0.1} 45. Kc6 {+1010.00/18 0.8} Qe8+ {-1010.00/5 0.2} 46. Kc7
{+1010.00/5 0.1} Qf7+ {-1010.00/5 0.1} 47. Kb6 {+1010.00/5 0.1} Qb3+
{-1010.00/5 0.1} 48. Kc6 {+1010.00/5 0.1} Qe6+ {-1010.00/5 0.1} 49. Kc5
{+1010.00/5 0.1} Qc8+ {-1010.00/5 0.1} 50. Kb4 {+1010.00/25 0.5} Qb7+
{-1010.00/5 0.1} 51. Kc4 {+1010.00/5 0.1} Qc6+ {-1010.00/5 0.1} 52. Qc5
{+1010.00/5 0.1} Qe4+ {-1010.00/22 0.2} 53. Kb5+ {+1010.00/5 0.1} Kd2
{-1010.00/5 0.1} 54. Qd4+ {+1010.00/5 0.1} Qd3+ {-1010.00/5 0.1} 55. Kc5
{+1010.00/5 0.1} Kc1 {-1010.00/99 0.1} 56. Qxd3 {+1010.00/18 0.1} Kb2
{-1010.00/5 0.1} 57. Qd2+ {+1000.04/26 0.1} Ka1 {-1000.03/99 0.1} 58. Kd4
{+1000.03/99 0.1} Kb1 {-1000.02/5 0.1} 59. Kc3 {+1000.02/99 0.1} Ka1
{-1000.01/5 0.1} 60. Qb2# {+1000.01/99 0.1}
{White mates} 1-0
[/pgn]

[MikeB]

Code: Select all

[5 man cursed wins or blessed losses depending on your perspective]
8/q7/P6k/Q7/8/8/8/6K1 w - -  ;"Longest cursed win for white: 141 ply"
8/8/3Q4/1P6/8/8/4kp2/6K1 w - - ;"Longest cursed win for white: 102 ply"
8/3B4/8/1R6/5r2/8/3K4/5k2 w - - ;"Longest cursed win for white:117 ply"
8/P7/2q5/2k5/6R1/8/8/6K1 w - - ;"Longest cursed win for white: 103 ply"
8/1K6/8/2P5/2R5/7k/7q/8 b - - ;"Longest cursed win for black: 151 ply"
K3R3/2k5/8/3P4/8/8/1b6/8 b - - ;"Longest cursed win for white: 106 ply" 
6R1/P7/1k6/8/8/8/p2K4/8 b - - ;"Longest cursed win for white: 101 ply"
8/8/R1k5/8/K1P5/8/4p3/8 b - - ;"Longest cursed win for black: 109 ply"
8/1q6/8/8/2B5/8/3K4/k5B1 w - - ;"Longest cursed win for black: 142 ply"
8/8/8/1B6/8/8/8/1KBk2n1 b - - ;"Longest cursed win for white: 132 ply"
8/8/8/1B6/8/8/K1p5/B2k4 w - - ;Longest cursed win for white: 104 ply" 
8/8/3B4/K7/8/8/1pk3B1/8 b - - ;Longest cursed win for black: 115 ply" 
8/8/8/8/8/8/1n5B/2K1N2k w - - ;Longest cursed win for white: 153 ply" 
8/8/2K5/7B/N7/2k5/1p6/8 b - - ;Longest cursed win for white: 109 ply" 
8/P7/2q5/2k5/6R1/8/8/6K1 w - - ;"Longest cursed win for white: 103 ply" 
8/8/2K5/7B/N7/2k5/1p6/8 b - - ;"Longest cursed win for white: 109 ply"
8/P7/2q5/2k5/6R1/8/8/6K1 w - - ;"Longest cursed win for white: 103 ply" 
8/8/4K3/2P5/7k/B1n5/8/8 b - - ;"Longest cursed win for white: 108 ply"
8/8/8/8/7q/3K4/3N4/3k3N w - - ;"Longest cursed win for black: 126 ply"
K7/N7/k7/8/3p4/8/N7/8 w - - ;"Longest cursed win for white: 164 ply"
8/N7/8/8/3k4/7N/p2K4/8 w - - ;"Longest cursed win for black: 108 ply" 
4K1k1/1N1P4/8/8/8/1q6/8/8 w - - ;"Longest cursed win for black: 101 ply" 
k7/n7/3P4/K5N1/8/8/8/8 w - - ;"Longest cursed win for white: 105 ply"
8/2P5/KP6/8/8/8/8/2qk4 w - - ;"Longest cursed win for white: 103 ply"
8/8/1k2P2K/6P1/8/3p4/8/8 b - - ;"Longest cursed win for white: 105 ply"
[5 MAN exactly 100 move wins]
4q3/8/8/8/1BB5/8/8/1K1k4 w - - ;"Longest win for black: 100 ply"
8/P7/8/5R2/k7/8/q6K/8 w - - ;"Longest win for black: 100 ply"
8/8/q7/3N4/8/8/N7/1K1k4 w - - ;"Longest win for black: 100 ply"
8/8/8/5N2/8/p7/8/2NK3k w - - ;"Longest win for white: 100 ply"