Author: Don Dailey
Date: 15:55:20 12/08/97
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On December 08, 1997 at 16:15:11, Rémi Coulom wrote: > >On December 08, 1997 at 04:10:05, Walter Ravenek wrote: > >>The maximum number of legal moves in a position I have across is 215, >>which is the number of white moves in the following position: >> >>4Q1qk/1Q4RN/3Q3N/Q4Q1B/2Q4B/4Q3/1Q4R1/3Q3K w - - >> >>In Arthur I use an upper bound 255, which seems quite safe to me. >> >>Walter Ravenek > >Here is an old article from rgcc : > >sadlowsk@mathematik.uni-bielefeld.de (Bernhard Sadlowski) wrote: > >>1. no promoted pieces, without promotion moves: 109 white moves (W.Cross 1967) >>2. no promoted pieces : 144 white moves (J.Ban 1960) >>3. with promoted pieces : 218 white moves (Dickins 1968) >>4. with all 32 pieces : 99 white moves (HH.Cross 1946) > >>(records taken from the book "Maerchenschach" by Anthony Dickins) > >>1. 5k2/2K5/3N1B2/P1NB4/6Q1/4R3/P1PP1P1P/1R6 w - - 0 1 >>2. n1r1r1b1/1P1P1P1P/1Q6/3NBNK1/R7/4p1p1/3PBPkP/2R5 w - - 0 1 >>3. 3Q4/1Q4Q1/4Q3/2Q4R/Q4Q2/3Q4/1Q4Rp/1K1BBNNk w - - 0 1 >>4. q2Q3r/n6R/kpB1N1K1/p1p1Bppp/1PN3P1/1n1pp1b1/P1PPPP1P/r5Rb w - - 0 1 > >>Many chess programs will crash if you setup most of these positions (esp. >>with the positions 2 and 3). > >>Bernhard >>-- >>Bernhard Sadlowski >><sadlowsk@mathematik.uni-bielefeld.de> > >Rémi Here is 110 and I already see some ways to improve it. This is with NO promoted pieces: 3nkn2/4P3/4N2P/4B3/P1N1B1K1/1R6/5Q2/3R4 w - - 110 moves! This is a modification of some ideas and a position already posted, so I take no credit for it. -- Don
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