Author: Dann Corbit
Date: 14:40:12 01/31/01
Go up one level in this thread
On January 31, 2001 at 13:28:30, leonid wrote:
>Hi!
>
>If you like to solve forced mate, here is the position.
>
>[D]2Q1N1qq/rQ2NPnP/r3qpqk/1Rb1n1qp/3N1nb1/1q1Q1B1R/2QB4/2R1K2R w - -
>
>Please indicate your result... even if your program failed.
Here is the ColChess search of the position. It is interesting (to me) because
it does NOT use NULL MOVE. I estimate it would complete ply 11 in under an
hour, ply 12 in under 4 hours, and ply 13 in a day. I'm not sure if extensions
would spot the mate in-between or not (though ColChess is particularly adept at
spotting mates before other programs do at the same depth of search).
Please Input Name:-leonid
leonid.epd loaded OK!
Set Time Limit [5] :- 999
Log to File leonid.out [YES/NO]? YES
Appending to output file!
Test #1 : White to play
Current Position
----------------
. . Q . N . q q
r Q . . N P n P pP=Pawn
r . . . q p q k rR=Rook
. R b . n . q p nN=Knight lower=Black
. . . N . n b . bB=Bishop CAPS=White
. q . Q . B . R qQ=Queen
. . Q B . . . . kK=King
. . R . K . . R
Thinking [88 Moves]
Current Position=-8.79
{L2} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (19.93) Nodes=6220
Eval=639 [0.02s]
{L3} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (22.90) Nodes=301159
Eval=194039 [2.97s]
{L4} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (24.58) Nodes=587636
Eval=344955 [8.18s]
{L5} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (22.64) Nodes=309178
Eval=149791 [10.72s]
{L6} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (23.23) Nodes=744242
Eval=258102 [15.36s]
{L7} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (22.62)
Nodes=2280759 Eval=1185072 [35.26s]
{L8} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (26.80)
Nodes=4506521 Eval=1087177 [60.59s]
{L9} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (22.60)
Nodes=8808047 Eval=4509577 [161.7s]
{L10} :::::::::::::::::::::::::::::::::::::::::::: PxG8(N) (26.70)
Nodes=102049807 Eval=26762671 [798.3s]
{L11} ::0 (ABORT) PxG8(N) (27.26) Nodes=18123135 Eval=8252103 [999.0s]
16 Minutes, 39 Seconds - D'oh
Nodes=137716704 Eval=42744126
Table Hits=382931 [310689 Entries]
PV : h7g8n+ h8g8 e7g8+ h6h7 e8f6+ e6f6 g8f6+ g5f6 d3g6+ e5g6 c8g8+ h7h6
d2f4+ f6f4 b5b3 g4h3 c2c5 a7b7 f3b7
---Answer: hxg8=N+ **-Correct-**
Correct So Far: 1[0]/1
Result: 1[0]/1 (100%)[0%]
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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