10x10: 6-piece endgame databases
Harm Jetten
Win/draw/loss statistics are given at the bottom of this
article. I used the DragonDraughts program by Michel Grimminck,
with various changes to preserve disk and memory space.
The generator program and source are available on my web page.
Regard these results as provisional; last September I reported
the 5-piece statistics, and differences were found (as yet
unexplained) between them and Jonathan Schaeffer's version.
DAM 2.2 v.5 (released today) is able to use these databases
during the search. It can also be used as an endgame database
"browser", suitable to set up a position and quickly see the
theoretical outcome of the position, and of each of the moves
possible from that position.
Harm Jetten.
hje...@xs4all.nl
http://www.xs4all.nl/~hjetten/
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10x10 international draughts, 6-piece endgame databases.
Database naming convention: <sidetomove>v<otherside>
X = king, O = man
win draw loss total
=====================================================================
database OOOOOvO: 49537626 11489 0 49549115
database OOOOOvX: 52646642 2326105 6408 54979155
database OOOOvOO: 104123809 20636555 139586 124899950
database OOOOvXO: 86572059 177344836 13958780 277875675
database OOOOvXX: 15034946 109420269 29754610 154209825
database OOOvOOO: 46327955 108013083 12650762 166991800
database OOOvXOO: 35961708 343784994 179003898 558750600
database OOOvXXO: 7416707 311017826 303300317 621734850
database OOOvXXX: 525085 92805110 136760655 230090850
database OOvOOOO: 3722250 52983258 68194442 124899950
database OOvXOOO: 4980057 123037807 430732736 558750600
database OOvXXOO: 2844869 118973084 813242447 935060400
database OOvXXXO: 667085 64208812 628963953 693839850
database OOvXXXX: 45824 14435919 178152457 192634200
database OvOOOOO: 22018 1351373 48175724 49549115
database OvXOOOO: 69772 3426086 274379817 277875675
database OvXXOOO: 86641 4323638 617324571 621734850
database OvXXXOO: 50249 3109071 690680530 693839850
database OvXXXXO: 12925 1213473 385014902 386241300
database OvXXXXX: 1028 204876 85603876 85809780
database XOOOOvO: 277875483 191 1 277875675
database XOOOOvX: 305946211 2473438 1 308419650
database XOOOvOO: 542284825 16441058 24717 558750600
database XOOOvXO: 811234584 424578676 7656440 1243469700
database XOOOvXX: 192935060 489487008 7850482 690272550
database XOOvOOO: 354820041 202969404 961155 558750600
database XOOvXOO: 379554810 1461444500 29121490 1870120800
database XOOvXXO: 125744970 1891376642 64397938 2081519550
database XOOvXXX: 14216785 719037147 37282868 770536800
database XOvOOOO: 86536740 183650345 7688590 277875675
database XOvXOOO: 144286772 924900947 174281981 1243469700
database XOvXXOO: 93957006 1409495603 578066941 2081519550
database XOvXXXO: 27067251 988238896 529659053 1544965200
database XOvXXXX: 3106029 255319653 170623218 429048900
database XXOOOvO: 621734799 47 4 621734850
database XXOOOvX: 688044662 2227883 5 690272550
database XXOOvOO: 928206137 6840905 13358 935060400
database XXOOvXO: 1747033122 330109478 4376950 2081519550
database XXOOvXX: 478381583 673040209 4383408 1155805200
database XXOvOOO: 497023957 124562417 148476 621734850
database XXOvXOO: 678795283 1395118040 7606227 2081519550
database XXOvXXO: 261596224 2038731680 17119896 2317447800
database XXOvXXX: 32175934 816244504 9677362 858097800
database XXXOOvO: 693839850 0 0 693839850
database XXXOOvX: 769411528 1125271 1 770536800
database XXXOvOO: 691818917 2018589 2344 693839850
database XXXOvXO: 1382045963 162046746 872491 1544965200
database XXXOvXX: 449509604 407717030 871166 858097800
database XXXXOvO: 386241300 0 0 386241300
database XXXXOvX: 428730106 318794 0 429048900
database XXXXXvO: 85809780 0 0 85809780
database XXXXXvX: 95304964 39236 0 95344200
database XXXXvOO: 192356836 277363 1 192634200
database XXXXvXO: 396900131 32111216 37553 429048900
database XXXXvXX: 147550768 90772116 37616 238360500
database XXXvOOO: 201935779 28150147 4924 230090850
database XXXvXOO: 328190638 441891212 454950 770536800
database XXXvXXO: 142529328 714496786 1071686 858097800
database XXXvXXX: 19149632 298042698 621670 317814000
database XXvOOOO: 91900563 62228230 81032 154209825
database XXvXOOO: 160476169 526818652 2977729 690272550
database XXvXXOO: 105106917 1038400003 12298280 1155805200
database XXvXXXO: 30407742 810041072 17648986 858097800
database XXvXXXX: 3456298 226379795 8524407 238360500
database XvOOOOO: 3991969 19672387 31314799 54979155
database XvXOOOO: 14032762 84637417 209749471 308419650
database XvXXOOO: 18922199 175807319 495543032 690272550
database XvXXXOO: 12086102 190794102 567656596 770536800
database XvXXXXO: 3616248 102048837 323383815 429048900
database XvXXXXX: 405310 21473050 73465840 95344200
win draw loss grand total
totals: 16558934926 21346224403 8293599421 46198758750
------------------
pc...@del.this.co.uk
>Well, I completed the 6-piece endgame databases at last.
>Win/draw/loss statistics are given at the bottom of this
>article. I used the DragonDraughts program by Michel Grimminck,
Congratulations on a nice bit of work, Harm..
ade
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