Author: Eugene Nalimov
Date: 17:06:51 07/05/05
Go up one level in this thread
On July 05, 2005 at 20:03:28, Terry McCracken wrote: >On July 05, 2005 at 19:55:33, Dann Corbit wrote: > >>On July 05, 2005 at 19:26:39, Terry McCracken wrote: >> >>>On July 05, 2005 at 15:04:13, Eugene Nalimov wrote: >>> >>>>On July 05, 2005 at 14:41:42, Dieter Buerssner wrote: >>>> >>>>>On July 05, 2005 at 13:37:55, Terry McCracken wrote: >>>>> >>>>>>On July 05, 2005 at 13:01:07, Yar wrote: >>>>>> >>>>>>>8/7p/4k3/2B5/1P2K3/1r6/8/8 b - - >>>>>> >>>>>>Yes it appears to be a draw unless there is something hidden in the position? >>>>> >>>>>This is a 6-men position. As far as I know, this particular 6-men TB has never >>>>>been available from Robert Hyatt's ftp. But Marc Bourzutschky has created all >>>>>6-men TBs in the chessmaster format. He should be able to give a definite result >>>>>to this position. He might not read this thread. You should be able to find his >>>>>email adress by the CCC search engine. >>>>> >>>>>Regards, >>>>>Dieter >>>> >>>>C:\Crafty>wcrafty.exe >>>> >>>>Initializing multiple threads. >>>>System is SMP, not NUMA. >>>>unable to open book file [./book.bin]. >>>>book is disabled >>>>unable to open book file [./books.bin]. >>>> >>>>Crafty v19.18 (1 cpus) >>>> >>>>White(1): tbpath=k:\32;k:\21;k:\41;k:\31;k:\22;f:\33p >>>>6 piece tablebase files found >>>>93611kb of RAM used for TB indices and decompression tables >>>>White(1): 8/7p/4k3/2B5/1P2K3/1r6/8/8 b - - >>>>1. ... Rb1! 2. Kf4! Kd5! 3. Kg5 Ke4! 4. Kg4! Ra1 5. Bb6 Ra6 6. Bc5! >>>>Rg6+! 7. Kh3! Kf3! 8. Kh2! Rg2+ 9. Kh3! Rb2 10. Bf8 Rb1! 11. Kh2! >>>>Kg4! 12. Bg7 Rxb4! 13. Be5! Ra4 14. Bb8 Ra2+ 15. Kg1! Kh3 16. Bc7 >>>>Rg2+ 17. Kf1! Rg4 18. Kf2! Rg6 19. Bb8 Rg2+ 20. Kf1! Rg4! 21. Bc7 >>>>Kh4! 22. Bb8 Kg5 23. Kf2 Kf5 24. Bg3 h5! 25. Kf3! h4! 26. Bb8 Rb4 >>>>27. Ba7! Rb2 28. Bd4! Ra2 29. Bb6 h3! 30. Bc7! h2! 31. Bxh2! Rxh2! >>>>32. Ke3! Rh4 33. Kd3! Re4 34. Kc3 Kf4! 35. Kd3 Kf3! 36. Kd2 Re3! >>>>37. Kd1! Re2! 38. Kc1 Rf2 39. Kd1 Ke3! 40. Kc1! Kd3! 41. Kb1! Kc3! >>>>42. Ka1! Kb3! 43. Kb1 Rf1# >>>> puzzling over a move to ponder. >>>> depth time score variation (1) >>>>Black(1): Rb1 [pondering] >>>> clearing hash tables >>>> time surplus 0.00 time limit 30.00 (3:30) >>>> depth time score variation (1) >>>> time=0.02 cpu=0% mat=-2 n=113 fh=100% nps=10K >>>> ext-> chk=0 cap=0 pp=0 1rep=0 mate=0 >>>> predicted=0 nodes=113 evals=17 50move=0 >>>> endgame tablebase-> probes=15 hits=15 >>>> hashing-> 65%(raw) 65%(depth) 0%(sat) 94%(pawn) >>>> hashing-> 65%(exact) 0%(lower) 0%(upper) >>>> SMP-> split=0 stop=0 data=0/128 cpu=0.00 elap=0.02 >>> >>>A win for Black?! I think White is wrong with its K moves and Bg7?? dropping the >>>b pawn, after that its lost!? >> >>By 12.Bg7 white is definitely lost. > >Yes, that is losing outright. >I would at lest try Bc5. Rb2+ and mate in 32 as well. >>Since there is no exclamation point by Bg7, there are several alternatives that >>are equally good/bad depending upon how you look at it (e.g. for 2.Kf4, that is >>clearly the best response but for other moves there may not be a single best >>reply.) >> >>>Are you sure there isn't a bug at work here?? >> >>Looks fine to me. Omniscient tablebase files often cause magically strange >>looking moves. I am guessing that analysis will show there is not a better >>response. > >Maybe, it appears a zugzwang is in the making. TB's certainly don't work like >our minds, and it messed me up a bit.
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