Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Yet another test suite: Samuel Loyd checkmates

Author: Djordje Vidanovic

Date: 09:44:48 10/22/03

Go up one level in this thread


On October 22, 2003 at 06:33:41, Vladimir Medvedev wrote:

>I am not sure all these tasks has unique solution (at least two of them are
>incorrect, but I can't remember their numbers :(
>
>Now much can your engine solve at 1 sec/position?
>With/without null-move?
>
>GreKo is very weak at this test... (52 correct at 1 sec, Pentium-4/1.8 GHz)
>

On a PII-450 our program Axon found several illegal positions (I did not have
the time to check which...) and solved 62.  The log is below.  Null move was
off, just alpha-beta and some heuristics  (Vladan is currently working on
quiescence again...):

( + ) Loyd-100, , |Nf3,,|=>|Nf3|,   Eval=+MT/6,   Depth=7,   Pos=1191877
( - ) Loyd-099, , |Rb7,,|=>|Rg8|,   Eval=+1.48,   Depth=5,   Pos=1431003
( + ) Loyd-098, , |hxg3,,|=>|hxg3|,   Eval=+MT/4,   Depth=7,   Pos=202605
( + ) Loyd-097, , |Rxg3,,|=>|Rxg3|,   Eval=+MT/3,   Depth=5,   Pos=18256
( + ) Loyd-09, , |Bc1,,|=>|Bc1|,   Eval=+MT/5,   Depth=9,   Pos=218628
( - ) Loyd-09, , |Rh6,,|=>|Bxf6|,   Eval=+8.82,   Depth=5,   Pos=806569
( - ) Loyd-09, , |b4,,|=>|bxa3|,   Eval=+1.96,   Depth=5,   Pos=732085
( - ) Loyd-093, , |Rf2,,|=>|Re1|,   Eval=+4.46,   Depth=5,   Pos=768643
( - ) Loyd-09, , |Bh1,,|=>|Kxc2|,   Eval=+13.20,   Depth=5,   Pos=649788
( - ) Loyd-091, , |Qf8,,|=>|Qg3|,   Eval=+9.64,   Depth=5,   Pos=851608
( - ) , , |,,|=>|Qg3|,   Eval=+9.64,   Depth=5,   Pos=851608
( + ) Loyd-090, , |Ke8,,|=>|Ke8|,   Eval=+MT/4,   Depth=7,   Pos=771236
( - ) Loyd-089, , |Qf8,,|=>|Qc2|,   Eval=+MT/7,   Depth=7,   Pos=742738
( - ) Loyd-088, , |Ke3,,|=>|b5|,   Eval=+14.64,   Depth=5,   Pos=957336
( + ) Loyd-087, , |Nb6,,|=>|Nb6|,   Eval=+MT/4,   Depth=7,   Pos=367210
( - ) Loyd-086, , |Rb2,,|=>|e6|,   Eval=+16.72,   Depth=1,   Pos=316004
( - ) Loyd-085, , |Rd8,,|=>|Bxd3|,   Eval=+22.59,   Depth=5,   Pos=706377
( - ) Loyd-084, , |Qa8,,|=>|cxd3|,   Eval=+9.37,   Depth=5,   Pos=491650
( - ) Loyd-083, , |Bxa6,,|=>|Rg1|,   Eval=+MT/5,   Depth=7,   Pos=7064
( - ) Loyd-08, , |Bd2,,|=>|c7|,   Eval=+26.50,   Depth=5,   Pos=668586
( + ) Loyd-08, , |Rf6,,|=>|Rf6|,   Eval=+MT/4,   Depth=7,   Pos=152250
( - ) , , |,,|=>|Rf6|,   Eval=+MT/4,   Depth=7,   Pos=152250
( - ) Loyd-080, , |Be2,,|=>|Nxe6|,   Eval=+MT/5,   Depth=7,   Pos=207383
( - ) Loyd-079, , |Rh2,,|=>|Rxh5|,   Eval=+9.43,   Depth=5,   Pos=873344
( - ) Loyd-078, , |Bb5,,|=>|Bxa6|,   Eval=+13.43,   Depth=5,   Pos=672678
( - ) , , |Ra8,,|=>|Bg7|,   Eval=+15.81,   Depth=5,   Pos=416570
( - ) , , |,,|=>|Bg7|,   Eval=+15.81,   Depth=5,   Pos=416570
( + ) Loyd-076, , |Ne4,,|=>|Ne4|,   Eval=+MT/4,   Depth=7,   Pos=11199
( - ) Loyd-075, , |Qb5,,|=>|Qe7|,   Eval=+12.81,   Depth=5,   Pos=368750
( - ) Loyd-074, , |Nd8,,|=>|e4|,   Eval=+0.39,   Depth=5,   Pos=382241
( - ) Loyd-073, , |Ka2,,|=>|Kb2|,   Eval=+9.44,   Depth=5,   Pos=411421
( - ) , , |Qa1,,|=>|Bxg6|,   Eval=+4.04,   Depth=5,   Pos=550553
( - ) , , |,,|=>|Bxg6|,   Eval=+4.04,   Depth=5,   Pos=550553
( - ) Loyd-071, , |Qg1,,|=>|Nb4|,   Eval=+11.64,   Depth=1,   Pos=979920
( - ) , , |,,|=>|Nb4|,   Eval=+11.64,   Depth=1,   Pos=979920
( + ) Loyd-070, , |d4,,|=>|d4|,   Eval=+MT/3,   Depth=5,   Pos=11382
( + ) Loyd-069b, , |Kd1,,|=>|Kd1|,   Eval=+MT/3,   Depth=5,   Pos=289411
( - ) Loyd-069a, , |Ne6,,|=>|Qf6|,   Eval=+MT/4,   Depth=5,   Pos=245967
( + ) Loyd-068, , |Na6,,|=>|Na6|,   Eval=+MT/3,   Depth=5,   Pos=468
( - ) Loyd-067, , |Re6,,|=>|Qd4|,   Eval=+0.97,   Depth=1,   Pos=847623
( + ) , , |Rb6,,|=>|Rb6|,   Eval=+MT/3,   Depth=5,   Pos=508420
( - ) , , |,,|=>|Rb6|,   Eval=+MT/3,   Depth=5,   Pos=508420
( - ) Loyd-065, , |Bb7,,|=>|Bxh2|,   Eval=+4.28,   Depth=5,   Pos=577671
( + ) Loyd-064, , |Nd4,,|=>|Nd4|,   Eval=+MT/3,   Depth=5,   Pos=32453
( - ) , , |Ke2,,|=>|Bxe8|,   Eval=+4.82,   Depth=1,   Pos=1275279
( - ) , , |,,|=>|Bxe8|,   Eval=+4.82,   Depth=1,   Pos=1275279
( + ) Loyd-062, , |Re1,,|=>|Re1|,   Eval=+MT/3,   Depth=5,   Pos=6621
( + ) Loyd-061, , |Qg7,,|=>|Qg7|,   Eval=+MT/3,   Depth=5,   Pos=60619
( - ) , , |,,|=>|Qg7|,   Eval=+MT/3,   Depth=5,   Pos=60619
( + ) Loyd-060, , |Bg4,,|=>|Bg4|,   Eval=+MT/3,   Depth=5,   Pos=26228
( - ) Loyd-059, , |Qe8,,|=>|Rb7|,   Eval=+18.04,   Depth=5,   Pos=25035
( - ) Loyd-058, , |Qe4,,|=>|Na5|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-057, , |Re2,,|=>|Re2|,   Eval=+MT/3,   Depth=5,   Pos=6434
( + ) Loyd-056, , |Nf5,,|=>|Nf5|,   Eval=+MT/3,   Depth=5,   Pos=31668
( + ) Loyd-055, , |Ne6,,|=>|Ne6|,   Eval=+MT/3,   Depth=5,   Pos=966
( + ) Loyd-054, , |Qh1,,|=>|Qh1|,   Eval=+MT/3,   Depth=5,   Pos=179
( + ) Loyd-053, , |Re1,,|=>|Re1|,   Eval=+MT/3,   Depth=5,   Pos=394897
( + ) Loyd-052, , |Rg1,,|=>|Rg1|,   Eval=+MT/3,   Depth=5,   Pos=6117
( - ) Loyd-051, , |Qc3,,|=>|Nh4|,   Eval=+15.59,   Depth=5,   Pos=253633
( - ) , , |,,|=>|Nh4|,   Eval=+15.59,   Depth=5,   Pos=253633
( + ) Loyd-050, , |Qg3,,|=>|Qg3|,   Eval=+MT/3,   Depth=5,   Pos=52177
( - ) Loyd-049, , |h8=N,,|=>|Ra1|,   Eval=+18.63,   Depth=5,   Pos=23466
( + ) Loyd-048, , |Ra4,,|=>|Ra4|,   Eval=+MT/3,   Depth=5,   Pos=421720
( + ) Loyd-047, , |Ba7,,|=>|Ba7|,   Eval=+MT/3,   Depth=5,   Pos=89529
( + ) Loyd-046, , |Qf1,,|=>|Qf1|,   Eval=+MT/3,   Depth=5,   Pos=37758
( + ) Loyd-045, , |Nb3,,|=>|Nb3|,   Eval=+MT/3,   Depth=5,   Pos=41711
( + ) Loyd-044, , |Bc5,,|=>|Bc5|,   Eval=+MT/3,   Depth=5,   Pos=70405
( + ) Loyd-043, , |Qh6,,|=>|Qh6|,   Eval=+MT/3,   Depth=1,   Pos=81901
( + ) Loyd-042, , |Qg8,,|=>|Qg8|,   Eval=+MT/3,   Depth=5,   Pos=91006
( - ) Loyd-041, , |Pa8b,,|=>|a8|,   Eval=+MT/4,   Depth=7,   Pos=95062
( - ) , , |,,|=>|a8|,   Eval=+MT/4,   Depth=7,   Pos=95062
( - ) Loyd-040, , |f8=R,,|=>|f5|,   Eval=+12.55,   Depth=5,   Pos=533786
( + ) Loyd-039, , |Qg8,,|=>|Qg8|,   Eval=+MT/3,   Depth=5,   Pos=14879
( + ) Loyd-038, , |Qh7,,|=>|Qh7|,   Eval=+MT/3,   Depth=1,   Pos=313044
( + ) Loyd-037, , |Qh8,,|=>|Qh8|,   Eval=+MT/3,   Depth=5,   Pos=3877
( + ) Loyd-036, , |Qh7,,|=>|Qh7|,   Eval=+MT/3,   Depth=1,   Pos=936138
( + ) Loyd-035, , |Ba8,,|=>|Ba8|,   Eval=+MT/3,   Depth=5,   Pos=117479
( + ) Loyd-034, , |Rf7,,|=>|Rf7|,   Eval=+MT/3,   Depth=5,   Pos=52866
( + ) Loyd-033, , |Qh1,,|=>|Qh1|,   Eval=+MT/3,   Depth=1,   Pos=8545
( + ) Loyd-032, , |Ba4,,|=>|Ba4|,   Eval=+MT/3,   Depth=5,   Pos=45896
( - ) Loyd-031, , |Ng4,,|=>|Nh3|,   Eval=+15.56,   Depth=1,   Pos=967652
( - ) , , |,,|=>|Nh3|,   Eval=+15.56,   Depth=1,   Pos=967652
( + ) Loyd-030, , |Rf4,,|=>|Rf4|,   Eval=+MT/3,   Depth=5,   Pos=15996
( - ) Loyd-029, , |Rb3,,|=>|Qd2|,   Eval=+19.86,   Depth=5,   Pos=506177
( + ) Loyd-028, , |Bc4,,|=>|Bc4|,   Eval=+MT/3,   Depth=5,   Pos=385380
( + ) Loyd-027, , |Qd6,,|=>|Qd6|,   Eval=+MT/3,   Depth=5,   Pos=26032
( + ) Loyd-026, , |Qe6,,|=>|Qe6|,   Eval=+MT/3,   Depth=5,   Pos=31584
( + ) Loyd-025, , |Qb8,,|=>|Qb8|,   Eval=+MT/3,   Depth=5,   Pos=490731
( - ) Loyd-024, , |Rh8,,|=>|Nb5|,   Eval=+MT/3,   Depth=1,   Pos=5485
( + ) Loyd-023, , |Ra6,,|=>|Ra6|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-022, , |Qa1,,|=>|Qa1|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-021, , |Qa1,,|=>|Qa1|,   Eval=+MT/2,   Depth=3,   Pos=0
( - ) , , |,,|=>|Qa1|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-020, , |Be5,,|=>|Be5|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-019, , |Bb3,,|=>|Bb3|,   Eval=+MT/2,   Depth=3,   Pos=0
( - ) Loyd-018, , |Qa8,,|=>|Nf6|,   Eval=+MT/3,   Depth=1,   Pos=1898
( + ) Loyd-017, , |Bc2,,|=>|Bc2|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-016, , |Qa2,,|=>|Qa2|,   Eval=+MT/2,   Depth=3,   Pos=0
( - ) Loyd-015, , |Qd8,,|=>|Qe3|,   Eval=+MT/3,   Depth=1,   Pos=10833
( + ) Loyd-014, , |Kf5,,|=>|Kf5|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-013, , |Qa1,,|=>|Qa1|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-012, , |Qa1,,|=>|Qa1|,   Eval=+MT/2,   Depth=1,   Pos=2352
( + ) Loyd-011, , |Rg2,,|=>|Rg2|,   Eval=+MT/2,   Depth=3,   Pos=0
( - ) , , |,,|=>|Rg2|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-010, , |Qa8,,|=>|Qa8|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-009, , |Qb7,,|=>|Qb7|,   Eval=+MT/2,   Depth=3,   Pos=0
( - ) Loyd-008, , |Nf2,,|=>|Qe3|,   Eval=+MT/3,   Depth=5,   Pos=1738
( + ) Loyd-007, , |Rf3,,|=>|Rf3|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-006, , |Qa8,,|=>|Qa8|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-005, , |Qc8,,|=>|Qc8|,   Eval=+MT/3,   Depth=5,   Pos=981
( + ) Loyd-004, , |Qa5,,|=>|Qa5|,   Eval=+MT/2,   Depth=1,   Pos=5783
( + ) Loyd-003, , |Ba2,,|=>|Ba2|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-002, , |Re1,,|=>|Re1|,   Eval=+MT/2,   Depth=3,   Pos=0
( + ) Loyd-001, , |Qa1,,|=>|Qa1|,   Eval=+MT/3,   Depth=5,   Pos=7896
( - ) , , |,,|=>|Qa1|,   Eval=+MT/3,   Depth=5,   Pos=7896
( - ) , , |,,|=>|Qa1|,   Eval=+MT/3,   Depth=5,   Pos=7896


->  Axon,  September 17, 2003.
->  Hash:  3866624 elements,  22 Mb.
->  Time:  81 sec.

->  Statistics:  63 of 116   (54%)   found,  1 sec./pos.



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.