Computer Chess Club Archives


Search

Terms

Messages

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

Author: Stuart Cracraft

Date: 20:57:13 03/06/06

Go up one level in this thread


On March 06, 2006 at 23:28:53, Dann Corbit wrote:

>On March 06, 2006 at 22:56:37, Dann Corbit wrote:
>
>>This is a fairly difficult combination leading to mate:
>>[D] 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - bm Qg2+
>>
>>I think king safety terms will help a lot here.
>
>Analyze each of these for 30 seconds and show me the output of your program:
>
>5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - bm Qg2+ id "-rotXTDa.1";
>1kr5/p4p2/r4p2/4P3/1b1p4/pPqN2Q1/K1P3PP/2R4R b - - bm Qb2+ id "-rotXTDg.1" ;
>r4r2/pp3p1k/1q2nQpP/4P1B1/3p4/2P4R/2P4P/5RK1 w - - bm Qg7+ id "-rotXTDc.8" ;
>2r4r/k1p3pp/PpQn2q1/1B1P4/4p3/R4P2/P4P2/1KR5 w - - bm Qb7+ id "-rotXTDe.8" ;

No solutions from teedee. I hope the printouts prove useful.

teedee - Temporal Differences Chess
v1 2006
copyright (c) 2004,2005,2006
Stuart Cracraft (cracraft@cox.net)

.st
30
maxdepth = 9999999 maxtime = 3000 timed = 1
.ts
position file? [wac.epd] # of test positions to test? 4
Testsuite: Tests/dann.epd 4 positions
*** Problem   Solution(s): Qg2+ (bm)
[D] 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - bm Qg2+
*** Problem   Solution(s): Qg2+ (bm)
-- ** -- ** -- BR BK **
** -- BP -- ** -- ** BP
-- ** BP ** -- ** -- BR
** -- ** WP ** -- ** --
-- ** -- ** BP ** BB **
** WQ ** -- WN BQ WP BP
WP WP -- ** -- WP -- WK
WR -- ** -- ** WR ** --
mv 1 stage 0, black to move, computer plays black
hash=7162f42a35387755
pawnhash=fbabfbdf1ec9f8f
Alpha=-269 Beta=531 Maxdepth=9999999 MaxTime=3000
Ply/Max Mv   Score   Time Nodes PV
 1/ 5>c6d5 531  0.00       32 c6d5 b3d5
 1/ 7 g8f7 547  0.01      291 g8f7
 2/ 7>g8f7 947  0.01      403 g8f7 e3g4
 2/ 7 g4c8 962  0.01      752 g4c8
 3/ 9 c6d5 1351  0.03     2371 c6d5 b3d5 g4e6
 4/12<c6d5 950  0.06     4549 c6d5 b3d5 g4e6 d5b5 h6h5
 4/12 c6d5 -63  0.10     8848 c6d5 b3d5 g4e6 d5g5 h6g6 g5e7
 5/14 c6d5 16  0.17    15982 c6d5 b3d5 g4e6 d5g5 h6g6 g5c5
 6/14>c6d5 416  0.21    19726 c6d5 b3d5 g4e6 d5g5 h6g6 g5c5 e6a2 a1a2
 6/18 c6d5 416  0.39    39863 c6d5 b3d5 g4e6 d5g5 h6g6 g5c5 e6a2 a1a2
 7/18 c6d5 16  1.16   120877 c6d5 b3d5 f8f7 d5g5 h6g6 g5c5 mtmt
 8/22 c6d5 -36  3.05   325456 c6d5 b3d5 f8f7 d5g5 h6g6 g5c5 g6b6 c5e5
 9/23 c6d5 363  7.98   834086 c6d5 b3d5 g4e6 d5d1 f3d1 e3d1 f8f7 mtmt
10/26 c6d5 548 16.61  1765751 c6d5 b3d5 g4e6 d5g5 h6g6 g5b5 f8f7 mtmt
11/26<Tc6d5  -212 30.01  3263540 c6d5 b3d5 g4e6 d5d1 f3d1 e3d1 h6h5 a1c1 c7c5
nps=108763 h/p/q=23.00%/99.00%/0.00% q=74.0% bc=58%
br=2.15mp=2426/3371/-1702/-26738600
pawnx=40351 recapx=8669 qcheckx=0 checkx=108156 qfutilx=541433 onereplyx=8972
mthrx=75 futilx=0 bmx=133
c6d5 b3d5 g4e6 d5d1 f3d1 e3d1 h6h5 a1c1 c7c5 - 11.00/26.00 0% 0/1 bf=2.15
h/p/q=23.00%/99.00%/0.00% 30.01 3263540 3263540/30/108763
40351/8669/75/108156/541433/8972/0/133
*** Problem   Solution(s): Qb2+ (bm)
[D] 1kr5/p4p2/r4p2/4P3/1b1p4/pPqN2Q1/K1P3PP/2R4R b - - bm Qb2+
*** Problem   Solution(s): Qb2+ (bm)
-- BK BR ** -- ** -- **
BP -- ** -- ** BP ** --
BR ** -- ** -- BP -- **
** -- ** -- WP -- ** --
-- BB -- BP -- ** -- **
BP WP BQ WN ** -- WQ --
WK ** WP ** -- ** WP WP
** -- WR -- ** -- ** WR
mv 1 stage 0, black to move, computer plays black
hash=53f67b16c90fbe89
pawnhash=de6311e44becc3a6
Alpha=-309 Beta=491 Maxdepth=9999999 MaxTime=3000
Ply/Max Mv   Score   Time Nodes PV
 1/ 8 f6e5 63  0.00      228 f6e5 g3e5
 2/ 8>f6e5 463  0.01      270 f6e5 g3e5 a6d6
 2/ 8 b8c7 479  0.01      757 b8c7
 3/ 8>b8c7 879  0.02     1276 b8c7 d3b4 c3b2
 3/ 9 f6e5 1394  0.04     2556 f6e5 g3e5 b4d6 e5d5
 4/12<f6e5 993  0.06     5211 f6e5 g3e5 b8b7 e5d5
 4/12 f6e5 -44  0.11     9779 f6e5 g3e5 b4d6 e5f5
 5/15 f6e5 -103  0.24    22504 f6e5 g3e5 b4d6 e5b5 a6b6 b5d7
 6/15>f6e5 297  0.29    27350 f6e5 g3e5 b4d6 e5b5 a6b6 b5d7 d6h2 h1h2
 6/18 f6e5 297  0.46    46731 f6e5 g3e5 b4d6 e5b5 a6b6 b5d7 d6h2 h1h2
 7/19 f6e5 -68  1.38   147035 f6e5 g3e5 b8a8 e5b5 a6b6 b5f5
 8/23 f6e5 -102  4.93   520912 f6e5 g3e5 c8c7 e5e8 c7c8 e8e5 c8c7 e5e8 c7c8 e8e5
c8c7 e5e8 c7c8 e8e5
 9/30 c3b2 -112 15.53  1717243 c3b2 d3b2 a3b2 a2b2 b4c3 g3c3 d4c3 b2b1 f6e5 h1e1
c8e8 e1e3
10/30 Tf6e5  287 30.05  3316760 f6e5 g3e5 b4d6 e5b5 a6b6 b5g5 c8c7 g5g8 b8b7
h1f1 b6a6 f1f7 c7f7 g8f7 d6c7
nps=110378 h/p/q=19.00%/99.00%/0.00% q=73.0% bc=57%
br=2.39mp=2593/3213/-1793/-1653
pawnx=44040 recapx=8802 qcheckx=0 checkx=113681 qfutilx=521566 onereplyx=12305
mthrx=517 futilx=0 bmx=1777
f6e5 g3e5 b4d6 e5b5 a6b6 b5g5 c8c7 g5g8 b8b7 h1f1 b6a6 f1f7 c7f7 g8f7 d6c7 -
10.50/28.00 0% 0/2 bf=2.27 h/p/q=21.00%/99.00%/0.00% 60.06 6580300
3290150/30/109571 84391/17471/592/221837/1062999/21277/0/1910
*** Problem   Solution(s): Qg7+ (bm)
[D] r4r2/pp3p1k/1q2nQpP/4P1B1/3p4/2P4R/2P4P/5RK1 w - - bm Qg7+
*** Problem   Solution(s): Qg7+ (bm)
BR ** -- ** -- BR -- **
BP BP ** -- ** BP ** BK
-- BQ -- ** BN WQ BP WP
** -- ** -- WP -- WB --
-- ** -- BP -- ** -- **
** -- WP -- ** -- ** WR
-- ** WP ** -- ** -- WP
** -- ** -- ** WR WK --
mv 1 stage 0, white to move, computer plays white
hash=7e6b96ae80087b5
pawnhash=ed198b44eb6183d5
Alpha=-248 Beta=552 Maxdepth=9999999 MaxTime=3000
Ply/Max Mv   Score   Time Nodes PV
 1/ 5>c3d4 552  0.00       32 c3d4 b6d4
 1/ 7 g1f2 568  0.01      291 g1f2
 2/ 7>g1f2 968  0.01      403 g1f2 e6g5
 2/ 7 g5c1 983  0.02      752 g5c1
 3/ 9 c3d4 1372  0.04     2382 c3d4 b6d4 g5e3
 4/12<c3d4 971  0.06     4685 c3d4 b6d4 g5e3 d4d7 h3h4
 4/12 c3d4 -35  0.11     8994 c3d4 b6d4 g5e3 d4g4 h3g3 g4e2
 5/14 c3d4 37  0.17    15996 c3d4 b6d4 g5e3 d4g4 h3g3 g4c4
 6/14>c3d4 437  0.22    19657 c3d4 b6d4 g5e3 d4g4 h3g3 g4c4 e3a7 a8a7
 6/18 c3d4 437  0.41    40519 c3d4 b6d4 g5e3 d4g4 h3g3 g4c4 e3a7 a8a7
 7/18 c3d4 37  1.08   111995 c3d4 b6d4 f1f2 d4g4 h3g3 g4e4 mtmt
 8/22 c3d4 248  2.82   296767 c3d4 b6d4 g5e3 d4b4 h3g3 mtmt
 9/25 c3d4 646  7.14   746931 c3d4 b6d4 g5e3 d4d8 f6d8 e6d8 e3a7 a8a7 f1f7 d8f7
10/28 c3d4 247 15.10  1637406 c3d4 b6d4 g5e3 d4b4 f1f4 b4b1 f4f1 b1c2 f6d8
11/33 Th3d3  201 30.01  3319821 c3d4 b6d4 g5e3 d4b4 c2c3 b4c3 f1c1 c3b2 g1h1
nps=110628 h/p/q=22.00%/99.00%/0.00% q=74.0% bc=58%
br=2.12mp=3511/26843607/-1483/-26738600
pawnx=39396 recapx=8613 qcheckx=0 checkx=105797 qfutilx=546473 onereplyx=8655
mthrx=569 futilx=0 bmx=543
c3d4 b6d4 g5e3 d4b4 c2c3 b4c3 f1c1 c3b2 g1h1 - 10.67/29.67 0% 0/3 bf=2.22
h/p/q=21.33%/99.00%/0.00% 90.06 9900121 3300040/30/109923
123787/26084/1161/327634/1609472/29932/0/2453
*** Problem   Solution(s): Qb7+ (bm)
[D] 2r4r/k1p3pp/PpQn2q1/1B1P4/4p3/R4P2/P4P2/1KR5 w - - bm Qb7+
*** Problem   Solution(s): Qb7+ (bm)
-- ** BR ** -- ** -- BR
BK -- BP -- ** -- BP BP
WP BP WQ BN -- ** BQ **
** WB ** WP ** -- ** --
-- ** -- ** BP ** -- **
WR -- ** -- ** WP ** --
WP ** -- ** -- WP -- **
** WK WR -- ** -- ** --
mv 1 stage 0, white to move, computer plays white
hash=3753202bd0c21c57
pawnhash=5110278a8fc8e5b9
Alpha=-288 Beta=512 Maxdepth=9999999 MaxTime=3000
Ply/Max Mv   Score   Time Nodes PV
 1/ 7 f3e4 84  0.01      227 f3e4 g6e4
 2/ 7>f3e4 484  0.01      269 f3e4 g6e4 a3d3
 2/ 7 b1c2 500  0.02      758 b1c2
 3/ 7>b1c2 900  0.02     1276 b1c2 d6b5 c6b7
 3/ 9 f3e4 1415  0.04     2542 f3e4 g6e4 b5d3 e4e7
 4/12<f3e4 1014  0.06     5118 f3e4 g6e4 b1a1 e4e7
 4/12 f3e4 -23  0.12    10304 f3e4 g6e4 b5d3 e4f4
 5/16 f3e4 -75  0.25    24317 f3e4 g6e4 b5d3 e4b4 a3b3 b4d2
 6/16>f3e4 325  0.30    29318 f3e4 g6e4 b5d3 e4b4 a3b3 b4d2 d3h7 h8h7
 6/18 f3e4 325  0.51    51506 f3e4 g6e4 b5d3 e4b4 a3b3 b4d2 d3h7 h8h7
 7/19 f3e4 -3  1.45   154332 f3e4 g6e4 c1c2 e4e1 c2c1 e1b4 a3b3 b4e4 b5d3 e4f4
 8/22 f3e4 -41  3.71   397022 f3e4 g6e4 b5d3 e4b4 a3b3 b4d4 c6d7 a7b8 mtmt
 9/25>f3e4 359  6.03   615119 f3e4 g6e4 b5d3 e4b4 a3b3 b4d4 c6d7 a7b8 f2f4 h7h5
 9/28 f3e4 359  9.69  1075279 f3e4 g6e4 b5d3 e4b4 a3b3 b4d4 c6d7 a7b8 f2f4 h7h5
10/28 f3e4 139 20.64  2250618 f3e4 g6e4 b5d3 e4b4 a3b3 b4g4 f2f4 g4g2 b3b2
11/28 Tf3e4  535 30.00  3226624 f3e4 g6e4 b5d3 e4e7 a3b3 h7h6 f2f4 h6h5 b3b2
nps=107554 h/p/q=19.00%/99.00%/0.00% q=74.0% bc=50%
br=2.12mp=2860/1849/-1394/-1507
pawnx=38841 recapx=8188 qcheckx=0 checkx=106681 qfutilx=555920 onereplyx=9444
mthrx=717 futilx=0 bmx=1544
f3e4 g6e4 b5d3 e4e7 a3b3 h7h6 f2f4 h6h5 b3b2 - 10.75/29.25 0% 0/4 bf=2.19
h/p/q=20.75%/99.00%/0.00% 120.06 13126745 3281686/30/109331
162628/34272/1878/434315/2165392/39376/0/3997
pawnx/recapx/mthrx/checkx/qfutilx/onereplyx/futilx/bmx
--------------------------------
Missed: 1 2 3 4
maxtime = 3000
.quit







This page took 0.02 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.