Author: Vincent Diepeveen
Date: 22:37:13 11/21/02
Go up one level in this thread
On November 22, 2002 at 01:14:51, Vincent Diepeveen wrote: position 40 in your testset is illegal: 4kqrk/r5pp/pn1p1p2/2pPpPPQ/2P4P/1P3P2/2BBK3/6RR w - - 0 1 [280] I wonder how you ran tests with it. >Hello, first table is first part of Omids numbers he needs at > >http://www.cs.biu.ac.il/~davoudo/pubs/vrfd_neishtadt_dep9.txt > >Node counts to get a 9 ply search depth. > > std R = 1 std R = 2 std R = 3 vrfd R = 3 > > 1 6864391 2073995 353415 640836 > 2 11849513 3952080 704417 1159792 > 3 7735232 2421290 1024175 1909431 > 4 10399311 3217656 296633 424892 > 5 7894973 1667965 391265 1276789 > 6 23843259 8257609 9196191 7599069 > 7 16628446 4849724 774861 1275569 > 8 232149 100757 25096 47493 > 9 7923159 2472308 282501 542888 > 10 8422519 2967494 277978 519170 > 11 5882451 2211559 418959 630473 > 12 16328807 10896537 3521012 3423127 > 13 11757759 3931197 1670286 4404093 > 14 52221384 15187127 7874393 13271141 > 15 25414826 8068577 802341 1448106 > 16 4928787 1841152 744449 986228 > 17 29153860 8656690 7331342 19243173 > 18 19251137 6351804 5102125 7498985 > 19 2676023 981646 416481 636074 > 20 36591070 14202065 6044385 8603409 > 21 22981115 16732702 17323332 13160168 > 22 1850548 662302 334199 748723 > 23 1329803 499360 213462 350438 > 24 25077330 7829115 1872259 3658545 > 25 7918374 3624752 2546515 6415498 > 26 12932272 3954053 1515639 2121015 > 27 7918018 2639096 765158 1687489 > 28 7931073 2880664 1432676 2767042 > 29 3068185 1122273 146023 281129 > 30 10010362 2893682 1196519 2498546 > 31 1785611 622960 111294 161102 > 32 21267135 7950051 3624877 8643335 > 33 4507858 2653606 1259310 2984433 > 34 5462440 1951888 413763 756776 > 35 15510610 6237615 2680171 5205710 > 36 19031416 8431949 6134553 10015012 > 37 23244769 10064705 4283335 2791961 > 38 3982956 2258114 1285883 1117010 > 39 540635 226331 90965 146517 > 40 7366081 3515047 1956719 686776 > 41 4465020 1442182 489696 1152792 > 42 10442881 5683547 1495948 4652067 > 43 1698094 623525 95375 244035 > 44 560198 436933 335003 167386 > 45 27686232 8698978 4577878 9033014 > 46 4688588 1802221 583648 1320446 > 47 921944 282597 100937 224661 > 48 4140231 1368459 321342 707243 > 49 13663065 4713142 2904570 6137891 > 50 9705458 3848893 1637528 2530890 > > > >From Omid's positions the vaste majority is mating positions. > >position 4 is a mate in 2. How do you manage to need 10.4MLN nodes >there Omid to finish 9 ply. > >Here is what DIEP needs at 9 ply for the >same positions and fullwidth it ain't much more for the mate in 2: > >depth totalnodes time needed (single cpu) > 9 223019 ( 0, 0) 3.02 1 > 9 54038 ( 0, 0) 0.83 2 > 9 1707338 ( 0, 0) 21.74 3 > 9 9814 ( 0, 0) 0.27 4 > 9 145529 ( 0, 0) 1.98 5 > 9 1343273 ( 0, 0) 19.77 6 > 9 142710 ( 0, 0) 1.34 7 > 9 37725 ( 0, 0) 0.81 8 > 9 178479 ( 0, 0) 2.05 9 > 9 11620 ( 0, 0) 0.44 10 > 9 53039 ( 0, 0) 0.89 11 > 9 2348386 ( 0, 0) 25.78 12 > 9 1541525 ( 0, 0) 18.14 13 > 9 5177632 ( 0, 0) 63.75 14 > 9 120584 ( 0, 0) 1.57 15 > 9 43201 ( 0, 0) 0.76 16 > 9 3599264 ( 0, 0) 49.54 17 > 9 1253990 ( 0, 0) 16.47 18 > 9 173255 ( 0, 0) 2.95 19 > 9 186748 ( 0, 0) 1.56 20 > 9 3836215 ( 0, 0) 53.99 21 > 9 183931 ( 0, 0) 1.67 22 > >So you need a factor 1000 more with R=1 there >than DIEP needs with nullmove. > >296613 nodes for R=3 is also a weird high number >for a mate in 2, considering how simple your qsearch >seems to be. > >Not a single position is not getting solved. >Not a single position therefore we have a regular >search seraching the next ply. It's just fail high fail high >fail high. > >And majority is mates. Perhaps it's all mates even... > >How can you need a 6.9 branching factor with R=1 when it is >basically all mates? > >10 million nodes for a mate in 2 to finish 9 ply!!!!!!!!!!!!!!!!!!!!! > >This is weird. > >Best Regards, >Vincent
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