Author: Ricardo Gibert
Date: 03:18:27 12/19/00
Go up one level in this thread
On December 19, 2000 at 00:27:24, Robert Hyatt wrote: >On December 18, 2000 at 18:03:20, Ulrich Tuerke wrote: > >>This is my standard test set for hashing: >> >>[D]8/k7/3p4/p2P1p2/P2P1P2/8/8/K7 w - - 0 1 >>id "HASH-01";bm Kb1;c0 "Kb1! only wins"; >>[D]8/1p5k/1P1p4/3p4/3Pp2p/2K1P2p/7P/8 w - - 0 1 >>id "HASH-02";bm Kb2;c0 "Kb2! forces draw"; >>[D]k1N5/2p5/8/1P6/8/8/7K/8 w - - 0 1 >>id "HASH-03";c0 "dead drawn"; > >Are you sure the above is drawn? Crafty says Nb6+ and if cxb6 it is a >mate in 20-something. If not, Na5 locks things up until the king gets >over and wins... You mean Na4. The "dead drawn" is obviously a typo. The position loses its point unless it is White to play and win. > >I checked this with the 5 piece endgame tablebases and get the following >output: > >1. Nb6+ cxb6 2. Kg3 Kb7 3. Kf4 Kc7 4. Ke5 Kd7 5. Kd5 Kc7 6. Ke6 Kb8 >7. Kd7 Kb7 8. Kd6 Ka8 9. Kc7 Ka7 10. Kc6 Ka8 11. Kxb6 Kb8 12. Ka6 >Kc7 13. Ka7 Kd6 14. b6 Kc5 15. b7 Kd4 16. b8=Q Ke3 17. Qh8 Kd2 18. >Qe8 Kd1 19. Qe3 Kc2 20. Kb6 Kb1 21. Qf2 Ka1 22. Kc5 Kb1 23. Kd4 Ka1 >24. Kc3 Kb1 25. Qb2# > > > > >>[D]1K6/8/2p4p/5p2/1P3P1k/4pP1p/4P2P/8 w - - 0 1 >>id "HASH-04";bm Ka8;c0 "Study W.Bolanowski, 1.Ka8! wins";
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.