Author: Dann Corbit
Date: 14:55:36 12/04/01
Go up one level in this thread
On December 04, 2001 at 16:35:25, José Antônio Fabiano Mendes wrote:
> Palevic vs Solovev === Correspondence Chess 1983
> Source:British Chess Magazine,May 1987,page 189
> [D]2k2r1r/pp4p1/1bp1p3/1q3n2/8/1QBN4/P4PPP/1R1R1B1K b
> 1...Qxb3 2.Rxb3 Rxh2+ 3.Kg1 Rh1+
> "In the actual game Black,a piece down,settled for a draw by 1...Ng3+
> 2.Kg1 Bxf2+ 3.Nxf2 Qxf1+ 4.Rxf1 Ne2+ with a perpetual check." J.J.Walsh
Beowulf solves it easily (3.5 seconds):
Position 1 - Black to play
--------------------------
ID =
FEN = 2k2r1r/pp4p1/1bp1p3/1q3n2/8/1QBN4/P4PPP/1R1R1B1K b - -
. . k . . r . r
p p . . . . p .
. b p . p . . .
. q . . . n . .
. . . . . . . .
. Q B N . . . .
P . . . . P P P
. R . R . B . K
Current Position = -4.11
Number of Possible Moves = 46
6 11 66 67425 f5g3 h1g1 b5d3 b3e6 c8b8 c3e5 b8a8 e6c8 f8c8
f1d3 g3h5
7 0 139 165321 f5g3 h1g1 b6f2 d3f2 b5f1 d1f1 g3e2 g1h1 e2g3
h1g1 &rep.
8 0 281 391587 f5g3 h1g1 b6f2 d3f2 b5f1 d1f1 g3e2 g1h1 e2g3
h1g1 &rep.
8 30! 347 487205 b5b3 c3b4 b3a2 b1b2 h8h2 h1h2 b6c7 h2h1 f5g3
h1g1 g3e2 b2e2
8 590 594 881517 b5b3 c3g7 b3a2 g7f8 h8f8 b1a1 a2d5 h1g1
9 619! 838 1343947 b5b3 c3g7 b3a2 g7f8 h8f8 g2g4 b6f2 f1e2
9 619 898 1445222 b5b3 c3g7 b6f2 d3f2 f5g3 h1g1 b3c2 g7f8 h8f8
f2d3 f8f1 d1f1 e6e5
10 615 2099 3613554 b5b3 c3g7 b3a2 g7f8 h8f8 b1b2 a2d5 h1g1 c8c7
b2d2
Search Time : 60.01 Seconds
Total Nodes Searched : 10376816 (81.2% Qui)
Total Nodes Evaluated : 8421462
Cuts : Delta 1700007 : SEE 587362 : Mate 0
: Razor 1359336 : Eval 6657323
Extensions : Check 540474 : OneRep 53128 : CMThreat 6962
: Pawn 3 : Recap 50364 : RevCheck 22377
Hash Stores (Size) : 1146101 (2796181)
Hash Probes (Hits) : 5324311 (1271640)
EGTB Probes (Hits) : 0 (0)
Move Ordering : 93.2%
Best Move = b5b3
--Answer: Qxb3 ** Correct **
Time To Solution = 3.47 sec
Correct So Far : 1/1
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
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