Author: Mark Rawlings
Date: 15:41:18 12/17/05
Go up one level in this thread
On December 17, 2005 at 16:39:02, David Dahlem wrote:
>On December 17, 2005 at 16:37:35, David Dahlem wrote:
>
>>On December 17, 2005 at 15:51:16, K. Burcham wrote:
>>
>>>
>>>
>>>What is the shortest mate that you know programs cannot find?
>>>and
>>>What is the shortest mate you know that most programs take a deep search to
>>>find?
>>>
>>>kburcham
>>
>>Here is a mate in 1 (probably not legal). ChestUCI finds the solution, but other
>>engines can't seem to find it. :-)
>>
>>Regards
>>Dave
>
>[D]8/8/pppppppK/NBBR1NRp/nbbrqnrP/PPPPPPPk/8/Q7 w - -
Even my lowly program gets this one:
Starting position:
+---+---+---+---+---+---+---+---+
8 | | . | | . | | . | | . |
+---+---+---+---+---+---+---+---+
7 | . | | . | | . | | . | |
+---+---+---+---+---+---+---+---+
6 |*P |*P |*P |*P |*P |*P |*P | K |
+---+---+---+---+---+---+---+---+
5 | N | B | B | R | . | N | R |*P |
+---+---+---+---+---+---+---+---+
4 |*N |*B |*B |*R |*Q |*N |*R | P |
+---+---+---+---+---+---+---+---+
3 | P | P | P | P | P | P | P |*K |
+---+---+---+---+---+---+---+---+
2 | | . | | . | | . | | . |
+---+---+---+---+---+---+---+---+
1 | Q | | . | | . | | . | |
+---+---+---+---+---+---+---+---+
a b c d e f g h
Searching:
ply nodes eval best move
---------------------------------------------------------------------
1 294 918 d3e4
2 751 M1 a1h1 a6b5
Mark
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.