Author: Les Fernandez
Date: 22:54:42 09/28/01
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On September 28, 2001 at 13:37:24, Eugene Nalimov wrote: >DTM, not DTC. After capture or promotion resulting position is stored in the >other TB, not in the current one. > >Eugene Hi Eugene, I am glad to hear that the information is correct. I had no doubt it wasn't. BTW have you had time to review the email I sent you? Thanks, Les > >On September 28, 2001 at 12:38:55, Mike Hood wrote: > >>Thanks for the reply, Eugene. I'm willing to accept I may be wrong, but how do >>you explain the discrepancies I named? >> >>Mike >> >>On September 28, 2001 at 11:11:33, Eugene Nalimov wrote: >> >>>There is no bug in TBSTAT, and statistics is correct. >>> >>>Eugene >>> >>>On September 28, 2001 at 08:27:37, Mike Hood wrote: >>> >>>>On September 19, 2001 at 04:23:39, Les Fernandez wrote: >>>> >>>>>Has anyone tabulated the total win-lose-draw-broken positions for first the 3 >>>>>then 4 and then the 5 piece sets? I know that the information is available on >>>>>Bobs ftp site but hoping that someone has already done it for both WTM and BTM >>>>>so I dont have to do them one by one. >>>>> >>>>>ie: >>>>> >>>>>EGTB WINS LOSE DRAW BROKEN >>>>> >>>>> 3 >>>>> 4 >>>>> 5 >>>> >>>>This is theoretically possible, but not very sensible at the moment. Most of the >>>>TBS files on Robert Hyatt's ftp server are defective, probably due to a bug in >>>>TBSTAT. >>>> >>>>For instance: >>>> >>>>krrk.tbs -- On black's move there are 1032 positions that lose in 16, but on >>>>white's move the longest mate is Mate in 7. >>>> >>>>kqrkr.tbs -- On black's move there are 60 moves that are Mate in 5, but there >>>>are ZERO moves that are Mate in 4. >>>> >>>>kbpk.tbs -- On white's move there is 1 position that is Mate in 31, but there >>>>are ZERO moves that are Mate in 30. >>>> >>>>In most of the TBS files the number of broken positions is not listed. >>>> >>>>Over 50% of the TBS files are obviously defective, and I can't vouch for the >>>>validity of the others. And, to ask a naive question, shouldn't the number of >>>>Mates/Losses/Draws in a pawnless tablebase always be divisible by 4? >>>> >>>>I've reported the bug to Eugene by email a few weeks ago, but it hasn't been >>>>fixed yet. >>>> >>>>Mike >>>> >>>>**** Dansez de la apusul pana la rasaritul soarelui ****
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