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Subject: Re: Chess program improvement project (copy at Winboard::Programming)

Author: Dann Corbit

Date: 20:04:24 03/06/06

Go up one level in this thread


*** Problem   Solution(s): Nxd5 (bm)
[D] r1q2rk1/p3bppb/3p1n1p/2nPp3/1p2P1P1/6NP/PP2QPB1/R1BNK2R b KQ - bm Nxd5
*** Problem   Solution(s): Nxd5 (bm)
BR ** BQ ** -- BR BK **
BP -- ** -- BB BP BP BB
-- ** -- BP -- BN -- BP
** -- BN WP BP -- ** --
-- BP -- ** WP ** WP **
** -- ** -- ** -- WN WP
WP WP -- ** WQ WP WB **
WR -- WB WN WK -- ** WR
mv 1 stage 0, black to move, computer plays black
hash=3a81fdded6269e62
pawnhash=2466670e8a77b5de
Alpha=-111 Beta=689 Maxdepth=9999999 MaxTime=1000
Ply/Max Mv   Score   Time Nodes PV
 1/ 6>f6e4 689  0.00       45 f6e4
 1/ 6 c8d8 1117  0.01      124 c8d8
 2/ 6 c8d7 981  0.01      256 c8d7
 3/ 9<c8d7 580  0.02     1136 c8d7 c1d2
 3/ 9 c8d7 537  0.03     2049 c8d7 b2b3
 4/10 c8d7 636  0.07     4563 c8d7 g4g5 h6g5 c1g5
 5/13 c8d8 762  0.17    13572 c8d8 g4g5 f6d7
 6/19 c8c7 681  0.71    59228 c8c7 g4g5 h6g5 c1d2 a8b8 d2g5
 7/19 c8a6 602  2.45   206288 c8a6 e2a6 c5a6 c1d2 a8b8 mtmt
 8/23 c8d8 688  4.37   375249 c8d8 f2f3 a8c8 c1d2
 9/25 Tc8d8  508 10.01   855040 c8d8 e1g1 a8c8 g1h2 g8h8 f2f3
nps=85410 h/p/q=27.00%/97.00%/0.00% q=80.0% bc=47%
br=3.59mp=1921/3040/-2129/-1311
pawnx=9340 recapx=5270 qcheckx=0 checkx=10159 qfutilx=224976 onereplyx=272
mthrx=246 futilx=0 bmx=0
c8d8 e1g1 a8c8 g1h2 g8h8 f2f3 - 10.00/24.60 0% 0/5 bf=2.58
h/p/q=27.80%/98.00%/0.00% 50.07 5432343 1086469/10/108499
34809/18912/738/120154/1064146/6169/0/2714

There is something very intersting here.  You have a large positive score for
the queen move.  The best move (according to most programs) is the knight sac,
which leads, after a convoluted exchange, to an advantage of less than one pawn.
 Perhaps you have discovered something interesting here.



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