Mate in 82?

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Dann Corbit
Posts: 9980
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
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Mate in 82?

Post by Dann Corbit » Thu Apr 04, 2019 3:36 am


Fabel, Karl
problem (Zagreb) 1951
Keywords: Sea Snake
Genre: n#
Reprints: 6 Söslanger 1969
Input: Frank Müller, 2015-3-15

PDB and Yacpdb describe this as a mate in 82.
It's in the ChestUCI database as a mate in 82.

I can't find any program that will resolve it to show a winning score.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

MikeB
Posts: 3382
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: Mate in 82?

Post by MikeB » Thu Apr 04, 2019 4:17 am

Dann Corbit wrote:
Thu Apr 04, 2019 3:36 am

Fabel, Karl
problem (Zagreb) 1951
Keywords: Sea Snake
Genre: n#
Reprints: 6 Söslanger 1969
Input: Frank Müller, 2015-3-15

PDB and Yacpdb describe this as a mate in 82.
It's in the ChestUCI database as a mate in 82.

I can't find any program that will resolve it to show a winning score.
With some back and for with the latest McCain-X2 (released today). Black would be fine if it does not capture a2, once that happens it's all over and it can be forced. Ultimately black will be forced to play g6 and that will obviously lose.

https://github.com/MichaelB7/Stockfish/releases/tag/X2

Code: Select all

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 85	+99.95 	2.44G	1:08.65	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 
 84	+99.95 	1.64G	0:47.22	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 
 83	+99.95 	1.01G	0:27.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 
 82	+99.95 	1.01G	0:26.99	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 
 81	+99.95 	1.01G	0:26.98	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 
 80	+99.95 	1.01G	0:26.98	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 
 79	+99.95 	1.01G	0:26.98	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 
 78	+99.95 	597.9M	0:14.03	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 77	+99.95 	595.1M	0:13.95	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 76	+99.95 	595.0M	0:13.95	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 75	+99.95 	595.0M	0:13.95	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 74	+99.95 	594.9M	0:13.95	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 73	+99.95 	594.9M	0:13.94	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 72	+99.95 	594.8M	0:13.94	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 71	+99.95 	594.7M	0:13.94	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 70	+99.95 	594.7M	0:13.94	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb 
 69	+99.94 	594.6M	0:13.94	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd1 
 68	+99.94 	342.8M	0:06.80	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd1 
 67	+99.94 	298.5M	0:05.91	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd1 
 66	+99.94 	243.0M	0:04.79	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd1 
 65	+99.94 	202.1M	0:03.97	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd1 
 64	+99.94 	168.6M	0:03.31	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd1 
 63	+99.94 	137.7M	0:02.71	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd1 
 62	+99.94 	112.1M	0:02.21	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd1 
 61	+99.94 	87.4M  	0:01.72	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 60	+99.94 	74.3M  	0:01.46	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 59	+99.94 	61.4M  	0:01.21	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 58	+99.94 	51.3M  	0:01.02	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 57	+99.94 	45.0M  	0:00.89	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 56	+99.94 	37.1M  	0:00.74	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 55	+99.94 	29.9M  	0:00.60	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 54	+99.94 	24.2M  	0:00.49	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 53	+99.94 	21.0M  	0:00.42	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 52	+99.94 	17.5M  	0:00.36	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 51	+99.94 	14.7M  	0:00.30	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 50	+99.94 	12.0M  	0:00.24	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 49	+99.94 	9.60M  	0:00.20	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 48	+99.94 	7.69M  	0:00.16	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 47	+99.94 	6.15M  	0:00.13	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 b5 Bd 
 46	+99.94 	4.94M  	0:00.10	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 Bf1 
 45	+99.94 	3.96M  	0:00.08	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 Ka2 
 44	+99.94 	3.26M  	0:00.07	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 Bh3 
 43	+99.94 	2.67M  	0:00.06	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 Ka1 
 42	+99.94 	2.19M  	0:00.05	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bg2 
 41	+99.94 	1.79M  	0:00.04	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 
 40	+99.94 	1.49M  	0:00.03	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 
 39	+99.94 	1.23M  	0:00.03	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 
 38	+99.94 	1.03M  	0:00.02	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 Be2 
 37	+99.94 	861948	0:00.02	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 Ka2 
 36	+99.94 	723734	0:00.02	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 Kc2 
 35	+99.94 	606558	0:00.02	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 Ka1 
 34	+99.94 	523052	0:00.01	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 Bd1 
 33	+99.94 	452207	0:00.01	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 32	+99.94 	317253	0:00.01	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 31	+99.94 	273587	0:00.01	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 30	+99.94 	230173	0:00.01	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 29	+99.94 	199153	0:00.01	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 28	+99.94 	171501	0:00.01	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 27	+99.94 	146348	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 26	+99.94 	124631	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 25	+99.94 	104250	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 Ka2 
 24	+99.94 	89778  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 Ka2 Bd1 Ka1 Kc1 Ka2 Bc2 Ka1 Bb1 b6 Bc2 
 23	+99.94 	78152  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 Be2 
 22	+99.94 	68912  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 Ka1 
 21	+99.94 	60663  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 Ka2 Bf1 
 20	+99.94 	53611  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 
 19	+99.94 	43018  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 Bg2 
 18	+99.94 	37660  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 Ka1 
 17	+99.94 	33170  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 Bh3 
 16	+99.94 	29283  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 Ka2 
 15	+99.94 	25891  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 Bf1 
 14	+99.95 	22804  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 Ka1 
 13	+99.95 	20254  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 Be2 
 12	+99.95 	17833  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 Ka2 
 11	+99.95 	15514  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 Kc2 
 10	+99.95 	13493  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 Ka1 
  9	+99.95 	11397  	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 Bd1 
  8	+99.95 	9562    	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 Kxa2 
  7	+99.95 	7743    	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 Kc1 
  6	+99.95 	6141    	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 Ka1 
  5	+99.95 	4704    	0:00.00	Be2 Kb1 Bd1 Kb2 Bc2 
  4	+99.95 	3421    	0:00.00	Be2 Kb1 Bd1 Kb2 
  3	+99.95 	2264    	0:00.00	Be2 Kb1 Bd1 
  2	+99.95 	1297    	0:00.00	Be2 Kb1 
  1	+99.95 	442      	0:00.00	Be2 
Here MxC X2 vs McC-X2 - white has the hash full with some back and forth, black MCCain was a cold start.


tpoppins
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Re: Mate in 82?

Post by tpoppins » Thu Apr 04, 2019 4:51 am

Peter did it in Faster Forced Mate. "It" being probably not quite what you meant, though.
Tirsa Poppins
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hgm
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Re: Mate in 82?

Post by hgm » Thu Apr 04, 2019 8:37 am

Dann Corbit wrote:
Thu Apr 04, 2019 3:36 am
It's in the ChestUCI database as a mate in 82.

I can't find any program that will resolve it to show a winning score.
ChestUCI doesn't find it?

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Re: Mate in 82?

Post by Steve Maughan » Thu Apr 04, 2019 2:39 pm

Amazingly Komodo 12.3 announces mate in 82 after 44 seconds on my relatively fast laptop (i9)! Note there wasn't any forward and backward analysis. I did a clean restart of the Shredder GUI.

Here's the output:



Engine: Komodo 12.3 64-bit [6-Threads] (8192 MB)
by Don Dailey, Larry Kaufman, Mark Lefler

Code: Select all

44.01  0:09   0.00     1.Bf1 Kc1 2.Bg2 Kc2 3.Ke2 Kc3 4.Bh3 Kc2 
                       5.Bf1 Kc1 6.Bg2 Kc2 7.Bh3 Kc3 8.Kd1 Kxd3 
                       9.Bf1+ Kc3 10.Bb5 d3 11.Bc4 d5 
                       12.Bb5 b6 13.Kc1 d2+ 14.Kd1 (146.298.857) 15695 TB:242 

45.01  0:10   +0.06++  1.Bf1 Kc1 2.Bg2 (160.900.431) 15425 TB:249 

45.01  0:10   +0.14++  1.Bf1 Kc1 2.Bg2 (162.257.371) 15416 TB:249 

45.01  0:10   +0.25++  1.Bf1 Kc1 2.Bg2 (162.430.623) 15413 TB:249 

45.01  0:10   +0.40++  1.Bf1 Kc1 2.Bg2 (163.459.207) 15397 TB:249 

45.01  0:10   +0.61++  1.Bf1 Kc1 2.Bg2 (163.867.790) 15386 TB:249 

45.01  0:11   +0.47--  1.Bf1 Kc1 (176.803.800) 15479 TB:249 

45.01  0:11   +0.67++  1.Bf1 Kc1 2.Ke2 (181.482.396) 15493 TB:249 

45.01  0:11   +1.23++  1.Bf1 Kc1 2.Ke2 (183.668.588) 15475 TB:249 

45.01  0:12   +0.84--  1.Bf1 Kc1 (189.626.957) 15472 TB:249 

45.01  0:12   +1.38++  1.Bf1 Kc1 2.Ke2 (192.328.397) 15438 TB:249 

45.01  0:12   +1.83    1.Bf1 Kc1 2.Ke2 Kc2 3.Bg2 Kc3 4.Bh3 Kc2 
                       5.Bf1 Kc1 6.Ke1 Kc2 7.Be2 Kc1 8.Bd1 Kb1 
                       9.Kd2 Kb2 10.Be2 Kxa2 11.Kc2 Ka1 
                       12.Bf1 Ka2 13.Bh3 Ka1 14.Bg2 (201.074.140) 15517 TB:249 

46.01  0:13   +1.77--  1.Bf1 Kc1 (213.199.539) 15548 TB:249 

46.01  0:14   +1.81++  1.Bf1 Kc1 2.Ke2 (219.024.604) 15501 TB:265 

46.01  0:16   +1.92++  1.Bf1 Kc1 2.Bh3 (252.911.975) 14946 TB:295 

46.01  0:17   +1.85--  1.Bf1 Kb1 (267.889.221) 14962 TB:310 

46.01  0:18   +1.95++  1.Bf1 Kb1 2.Kd1 (269.928.792) 14975 TB:310 

46.01  0:18   +2.24++  1.Bf1 Kc1 2.Bh3 (281.393.388) 15003 TB:310 

46.01  0:20   +2.64++  1.Bf1 Kb1 2.Kd1 (302.775.190) 14793 TB:367 

46.01  0:20   +2.36--  1.Bf1 Kc1 (305.504.701) 14783 TB:379 

46.01  0:21   +2.75++  1.Bf1 Kc1 2.Bh3 (318.003.445) 14826 TB:379 

46.01  0:23   +3.84++  1.Bf1 Kc1 2.Bg2 (342.747.821) 14809 TB:386 

46.01  0:23   +3.08--  1.Bf1 Kc3 (349.810.304) 14794 TB:471 

46.01  0:24   +3.90    1.Bf1 Kc3 2.Ke2 Kc2 3.Bg2 Kc3 4.Bh3 Kc2 
                       5.Bf1 Kc1 6.Ke1 Kb1 7.Kd2 Kb2 8.Be2 Kb1 
                       9.Bd1 Kb2 10.Bc2 Kxa2 11.Kc1 Ka1 
                       12.Bb1 b6 13.Bc2 Ka2 14.Bd1 (358.455.913) 14794 TB:471 

47.01  0:24   +3.84--  1.Bf1 Kc3 (366.254.671) 14811 TB:476 

47.01  0:25   +3.76--  1.Bf1 Kb1 (374.958.949) 14767 TB:479 

47.01  0:25   +3.65--  1.Bf1 Kb1 (380.222.165) 14790 TB:479 

47.01  0:26   +3.72++  1.Bf1 Kc3 2.Ke2 (395.635.052) 14829 TB:481 

47.01  0:26   +3.93++  1.Bf1 Kc3 2.Ke2 (398.272.132) 14829 TB:481 

47.01  0:27   +4.17    1.Bf1 Kc3 2.Ke2 Kc2 3.Bh3 Kc1 4.Bg2 Kb1 
                       5.Kd2 Kb2 6.Bf1 Kb1 7.Bh3 Kb2 8.Bg2 Kxa2 
                       9.Kc2 Ka1 10.Bh3 Ka2 11.Bf1 Ka1 
                       12.Be2 Ka2 13.Bd1 Ka1 14.Kc1 (401.132.466) 14831 TB:481 

48.01  0:27   +4.23++  1.Bf1 Kc3 2.Ke2 (407.857.591) 14832 TB:481 

48.01  0:27   +4.31++  1.Bf1 Kc1 2.Bg2 (408.163.372) 14833 TB:481 

48.01  0:27   +4.42++  1.Bf1 Kc3 2.Ke2 (408.653.061) 14835 TB:481 

48.01  0:27   +4.57++  1.Bf1 Kc3 2.Ke2 (409.079.337) 14831 TB:481 

48.01  0:27   +4.78++  1.Bf1 Kc3 2.Ke2 (410.321.003) 14832 TB:481 

48.01  0:27   +5.07++  1.Bf1 Kc3 2.Ke2 (410.408.969) 14832 TB:481 

48.01  0:27   +5.47++  1.Bf1 Kc3 2.Ke2 (414.542.289) 14846 TB:481 

48.01  0:27   +6.03++  1.Bf1 Kc3 2.Ke2 (415.302.689) 14847 TB:481 

48.01  0:28   +6.81++  1.Bf1 Kc3 2.Kd1 (428.581.535) 14849 TB:481 

48.01  0:29   +6.27--  1.Bf1 Kc3 (436.034.416) 14859 
                       TB:1.398 

48.01  0:38   +12.78   1.Bf1 Kc3 2.Kd1 Kb2 3.Bg2 d6 4.Kd2 Kb1 
                       5.Bf1 Kb2 6.Bh3 Kb1 7.Kd1 Kb2 8.Bg2 Kc3 
                       9.Bf1 Kb2 10.Kd2 Kb1 11.Be2 Kb2 
                       12.Bd1 Kb1 13.Bc2+ Kb2 14.Kd1 (589.046.855) 15128 
                       TB:1.785 

49.01  0:40   +12.72-- 1.Bf1 Kc1 (611.071.705) 15106 
                       TB:1.869 

49.01  0:40   +12.64-- 1.Bf1 Kc1 (614.100.503) 15106 
                       TB:1.875 

49.01  0:44   +M82     1.Bf1 Kc1 2.Ke2 Kc2 3.Bh3 Kc3 4.Bg2 Kc2 
                       5.Bf1 Kc1 6.Ke1 Kc2 7.Be2 Kc1 8.Bd1 Kb2 
                       9.Kd2 Kb1 10.Bc2+ Kb2 11.Kd1 Ka1 
                       12.Kc1 Kxa2 13.Bd1 Ka1 14.Be2 (677.719.771) 15064 
                       TB:1.978 
http://www.chessprogramming.net - Maverick Chess Engine

Geonerd
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Re: Mate in 82?

Post by Geonerd » Thu Apr 04, 2019 3:48 pm

What am I missing? :? :oops: I don't see any way to force the black king off the c-file w/o dropping the d3 pawn (which appears to actually loose!)

peter
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Re: Mate in 82?

Post by peter » Thu Apr 04, 2019 3:55 pm

Hi Steve!
Steve Maughan wrote:
Thu Apr 04, 2019 2:39 pm
Amazingly Komodo 12.3 announces mate in 82 after 44 seconds on my relatively fast laptop (i9)! Note there wasn't any forward and backward analysis. I did a clean restart of the Shredder GUI.

Here's the output:



Engine: Komodo 12.3 64-bit [6-Threads] (8192 MB)
by Don Dailey, Larry Kaufman, Mark Lefler

Code: Select all

44.01  0:09   0.00     1.Bf1 Kc1 2.Bg2 Kc2 3.Ke2 Kc3 4.Bh3 Kc2 
                       5.Bf1 Kc1 6.Bg2 Kc2 7.Bh3 Kc3 8.Kd1 Kxd3 
                       9.Bf1+ Kc3 10.Bb5 d3 11.Bc4 d5 
                       12.Bb5 b6 13.Kc1 d2+ 14.Kd1 (146.298.857) 15695 TB:242 

45.01  0:10   +0.06++  1.Bf1 Kc1 2.Bg2 (160.900.431) 15425 TB:249 

45.01  0:10   +0.14++  1.Bf1 Kc1 2.Bg2 (162.257.371) 15416 TB:249 

45.01  0:10   +0.25++  1.Bf1 Kc1 2.Bg2 (162.430.623) 15413 TB:249 

45.01  0:10   +0.40++  1.Bf1 Kc1 2.Bg2 (163.459.207) 15397 TB:249 

45.01  0:10   +0.61++  1.Bf1 Kc1 2.Bg2 (163.867.790) 15386 TB:249 

45.01  0:11   +0.47--  1.Bf1 Kc1 (176.803.800) 15479 TB:249 

45.01  0:11   +0.67++  1.Bf1 Kc1 2.Ke2 (181.482.396) 15493 TB:249 

45.01  0:11   +1.23++  1.Bf1 Kc1 2.Ke2 (183.668.588) 15475 TB:249 

45.01  0:12   +0.84--  1.Bf1 Kc1 (189.626.957) 15472 TB:249 

45.01  0:12   +1.38++  1.Bf1 Kc1 2.Ke2 (192.328.397) 15438 TB:249 

45.01  0:12   +1.83    1.Bf1 Kc1 2.Ke2 Kc2 3.Bg2 Kc3 4.Bh3 Kc2 
                       5.Bf1 Kc1 6.Ke1 Kc2 7.Be2 Kc1 8.Bd1 Kb1 
                       9.Kd2 Kb2 10.Be2 Kxa2 11.Kc2 Ka1 
                       12.Bf1 Ka2 13.Bh3 Ka1 14.Bg2 (201.074.140) 15517 TB:249 

46.01  0:13   +1.77--  1.Bf1 Kc1 (213.199.539) 15548 TB:249 

46.01  0:14   +1.81++  1.Bf1 Kc1 2.Ke2 (219.024.604) 15501 TB:265 

46.01  0:16   +1.92++  1.Bf1 Kc1 2.Bh3 (252.911.975) 14946 TB:295 

46.01  0:17   +1.85--  1.Bf1 Kb1 (267.889.221) 14962 TB:310 

46.01  0:18   +1.95++  1.Bf1 Kb1 2.Kd1 (269.928.792) 14975 TB:310 

46.01  0:18   +2.24++  1.Bf1 Kc1 2.Bh3 (281.393.388) 15003 TB:310 

46.01  0:20   +2.64++  1.Bf1 Kb1 2.Kd1 (302.775.190) 14793 TB:367 

46.01  0:20   +2.36--  1.Bf1 Kc1 (305.504.701) 14783 TB:379 

46.01  0:21   +2.75++  1.Bf1 Kc1 2.Bh3 (318.003.445) 14826 TB:379 

46.01  0:23   +3.84++  1.Bf1 Kc1 2.Bg2 (342.747.821) 14809 TB:386 

46.01  0:23   +3.08--  1.Bf1 Kc3 (349.810.304) 14794 TB:471 

46.01  0:24   +3.90    1.Bf1 Kc3 2.Ke2 Kc2 3.Bg2 Kc3 4.Bh3 Kc2 
                       5.Bf1 Kc1 6.Ke1 Kb1 7.Kd2 Kb2 8.Be2 Kb1 
                       9.Bd1 Kb2 10.Bc2 Kxa2 11.Kc1 Ka1 
                       12.Bb1 b6 13.Bc2 Ka2 14.Bd1 (358.455.913) 14794 TB:471 

47.01  0:24   +3.84--  1.Bf1 Kc3 (366.254.671) 14811 TB:476 

47.01  0:25   +3.76--  1.Bf1 Kb1 (374.958.949) 14767 TB:479 

47.01  0:25   +3.65--  1.Bf1 Kb1 (380.222.165) 14790 TB:479 

47.01  0:26   +3.72++  1.Bf1 Kc3 2.Ke2 (395.635.052) 14829 TB:481 

47.01  0:26   +3.93++  1.Bf1 Kc3 2.Ke2 (398.272.132) 14829 TB:481 

47.01  0:27   +4.17    1.Bf1 Kc3 2.Ke2 Kc2 3.Bh3 Kc1 4.Bg2 Kb1 
                       5.Kd2 Kb2 6.Bf1 Kb1 7.Bh3 Kb2 8.Bg2 Kxa2 
                       9.Kc2 Ka1 10.Bh3 Ka2 11.Bf1 Ka1 
                       12.Be2 Ka2 13.Bd1 Ka1 14.Kc1 (401.132.466) 14831 TB:481 

48.01  0:27   +4.23++  1.Bf1 Kc3 2.Ke2 (407.857.591) 14832 TB:481 

48.01  0:27   +4.31++  1.Bf1 Kc1 2.Bg2 (408.163.372) 14833 TB:481 

48.01  0:27   +4.42++  1.Bf1 Kc3 2.Ke2 (408.653.061) 14835 TB:481 

48.01  0:27   +4.57++  1.Bf1 Kc3 2.Ke2 (409.079.337) 14831 TB:481 

48.01  0:27   +4.78++  1.Bf1 Kc3 2.Ke2 (410.321.003) 14832 TB:481 

48.01  0:27   +5.07++  1.Bf1 Kc3 2.Ke2 (410.408.969) 14832 TB:481 

48.01  0:27   +5.47++  1.Bf1 Kc3 2.Ke2 (414.542.289) 14846 TB:481 

48.01  0:27   +6.03++  1.Bf1 Kc3 2.Ke2 (415.302.689) 14847 TB:481 

48.01  0:28   +6.81++  1.Bf1 Kc3 2.Kd1 (428.581.535) 14849 TB:481 

48.01  0:29   +6.27--  1.Bf1 Kc3 (436.034.416) 14859 
                       TB:1.398 

48.01  0:38   +12.78   1.Bf1 Kc3 2.Kd1 Kb2 3.Bg2 d6 4.Kd2 Kb1 
                       5.Bf1 Kb2 6.Bh3 Kb1 7.Kd1 Kb2 8.Bg2 Kc3 
                       9.Bf1 Kb2 10.Kd2 Kb1 11.Be2 Kb2 
                       12.Bd1 Kb1 13.Bc2+ Kb2 14.Kd1 (589.046.855) 15128 
                       TB:1.785 

49.01  0:40   +12.72-- 1.Bf1 Kc1 (611.071.705) 15106 
                       TB:1.869 

49.01  0:40   +12.64-- 1.Bf1 Kc1 (614.100.503) 15106 
                       TB:1.875 

49.01  0:44   +M82     1.Bf1 Kc1 2.Ke2 Kc2 3.Bh3 Kc3 4.Bg2 Kc2 
                       5.Bf1 Kc1 6.Ke1 Kc2 7.Be2 Kc1 8.Bd1 Kb2 
                       9.Kd2 Kb1 10.Bc2+ Kb2 11.Kd1 Ka1 
                       12.Kc1 Kxa2 13.Bd1 Ka1 14.Be2 (677.719.771) 15064 
                       TB:1.978 
I knew komodo to be very well here, but unfortunately it seems, I never tried it with Syzygys loaded, because the mate is far away from such few men on board :)

The default Probe Depht of 8 seems better here than e.g.1 as for Probe Limit 6, without tbs winning line arises quickly still, but #x takes some longer.

Yet you could have had a lucky run still, couldn't you? At my 12core- PC most of my trials got stuck with #94 or something like this, but were also always very fast.
Good find!
Peter.

peter
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Full name: Peter Martan

Re: Mate in 82?

Post by peter » Thu Apr 04, 2019 4:05 pm

Hi!
Geonerd wrote:
Thu Apr 04, 2019 3:48 pm
What am I missing? :? :oops: I don't see any way to force the black king off the c-file w/o dropping the d3 pawn (which appears to actually loose!)
It's Cyclic Zugzwang, try for help komodo 12.3, if you have, or look at line to mate to get the fine trick:
Peter.

Dann Corbit
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Re: Mate in 82?

Post by Dann Corbit » Thu Apr 04, 2019 5:52 pm

hgm wrote:
Thu Apr 04, 2019 8:37 am
Dann Corbit wrote:
Thu Apr 04, 2019 3:36 am
It's in the ChestUCI database as a mate in 82.

I can't find any program that will resolve it to show a winning score.
ChestUCI doesn't find it?
I don't know how to configure ChestUCI to both find distant mates and also give me a full pv.
When I know that the mate is distant, I don't bother.

When I tell it to use the database, I get a useless response. Basically, it just says, "I found it." with no analysis.
When I tell it to use autoturbo it never seems to work on the long ones.

Perhaps I just don't know how to use it right. I also do not clearly understand the documentation for all the terms.

Now, I use Chest319 all the time (just modified it two days ago, in fact, to print out the EPD record when it is one of the mistakes it does not diagnose like "can beat the white king.") But that version would never solve checkmates in more than 12 unless you knew how to use the unusual parameters, and I don't know how to do it.

Eventually, I am going to write an AND/OR depth first proof search search using GPUs, but that is a project for when I retire, I think.
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Steve Maughan
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Re: Mate in 82?

Post by Steve Maughan » Thu Apr 04, 2019 6:02 pm

If anyone is interested, here's the mate in 82 that Komodo 12.3 found:

http://www.chessprogramming.net - Maverick Chess Engine

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