Author: Robert Hyatt
Date: 15:26:23 11/21/03
Go up one level in this thread
On November 21, 2003 at 18:13:23, Dann Corbit wrote: >On November 21, 2003 at 17:43:56, Vincent Lejeune wrote: > >>On November 21, 2003 at 16:02:21, Vincent Lejeune wrote: >> >>>On November 21, 2003 at 15:40:18, Dann Corbit wrote: >>> >>>>Caveat... To run this binary, you will need one of these versions of the Win32 >>>>operating system: >>>>Windows XP, Windows 2000 Professional, Windows NT Workstation 4.0, Windows >>>>Server 2003, Windows 2000 Server, or Windows NT Server 4.0 >>>> >>>>Binary: >>>>ftp://cap.connx.com/chess-engines/new-approach/Crafty-Smp-1905.exe >>>> >>>>Whole shooting match: >>>>ftp://cap.connx.com/chess-engines/new-approach/c19_05.zip >>>> >>>>In theory, it's NUMA aware, but I have not tested that part. >>>> >>>>I can't make a single threaded version, because the NUMA call stuff rules that >>>>out. >>>> >>>>I had to make a bunch of changes to get it to compile. Hopefully, I did not >>>>break anything. >>> >>>The 6-men TB works well, thanks ! >>> >>>setboard 8/8/1r1k4/8/5P2/6RK/5P2/8 w - - 0 1 >>>1. Rg6+! Kc5 2. f5! Rb2 3. Kg3 Kd5! 4. Re6! Rb3+! 5. Re3 Rb8! 6. >>>f6! Rf8! 7. Rf3! Ke6! 8. f7! Rxf7! 9. Rxf7! Kxf7! 10. Kf4! Kf6! 11. >>>f3! Ke6 12. Kg5! Kf7! 13. Kf5! Ke7 14. Kg6! Kd6 15. Kf6 Kc5 16. f4! >>>Kd5 17. f5! Kd6! 18. Kg7! Kc5 19. f6! Kb4 20. f7! Ka3 21. f8=Q+ Kb2 >>>22. Qc8 Kb1 23. Qc4 Ka1 24. Qb5 Ka2 25. Kf6! Ka1 26. Ke5! Ka2 27. >>>Kd4! Ka1 28. Kc3! Ka2 29. Qb2# >>>end-game phase >>> time surplus 0.00 time limit 30.00 (3:30) >>> depth time score variation (1) >>> 2 0.00 Mat18 1. Rg6+ <EGTB> >>> 2-> 0.00 Mat18 1. Rg6+ <EGTB> >>> 3 0.00 Mat18 1. Rg6+ <EGTB> >>> 3-> 0.00 Mat18 1. Rg6+ <EGTB> >>> 4 0.00 Mat18 1. Rg6+ <EGTB> >>> 4-> 0.00 Mat18 1. Rg6+ <EGTB> >>> time=0.00 cpu=100% mat=2 n=19 fh=100% nps=10k >>> ext-> chk=5 cap=0 pp=0 1rep=0 mate=0 >>> predicted=0 nodes=19 evals=8 >>> endgame tablebase-> probes=1 hits=1 >>> SMP-> split=0 stop=0 data=0/4096 cpu=0.00 elap=0.00 >> >>In fact not so well !!!! >>The analyze give mate in 18 and the egtb main-line give mate after 29 moves >>!!??? >> >>any idea ? > >Don't know. Maybe I broke it. Perhaps Dr. Hyatt or Eugene can give their >result for the same position. I did, but I can't imagine how you would wreck that part of the code as there were no changes there at all. I'd much more likely suspect that he has a missing table. IE the position is KRPP vs KR. He might be missing an under-promotion table that produces the shortest mate. In that case, the PV probe code will find the first forced mate it can find, with the tables at hand.
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