Author: Uri Blass
Date: 21:40:04 10/17/05
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On October 18, 2005 at 00:32:42, GuyHaworth wrote: > >A question Mark has posed himself is [I paraphrase somewhat]: > >"For what number of men is the 'DTZ' depth maximised?" > >He suggested it might have peaked with the maxDTZ = 243 for KRNKNN but we now >see that this is not the case. I see no particular reason why KRRNKRR exhibits >the maxDTZ for 7-men either, One might conjecture that there would be no Pawns >on the board as a Pawn-advance sets the move-count back to zero, but KNNKP is a >5-man counter-example. > >According to the endgame stats, available at www.icga.org, maxDTZs are: > > #-men P-less maxDTZ P-ful maxDTZ Notes > > 3 KRK 16 KPK 10 > 4 KBNK 33 KQKP 26 > 5 KBNKN 77 KNNKP 82 > 6 KRNKNN 243 ?? P-ful EGTs not available > > 7 KRRNKRR 290 ?? ... so far > >Note that DTZ is "Depth to [move-count] Zeroing move" and not DTM which is >"Depth to Mate" or DTC which is "Depth to Conversion [i.e. capture and/or >conversion and/or mate]". > >g I do not understand the difference between DTC and DTZ What is the difference between Zeroing move and conversion. Does conversion mean only capture or mate or promotion without pawn moves? I thought that conversion means every move that zero the 50 move counter. Uri
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