Author: Miguel A. Ballicora
Date: 20:29:31 02/06/02
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On February 06, 2002 at 20:08:07, Dann Corbit wrote: >On February 06, 2002 at 20:07:39, Dann Corbit wrote: > >[D]N1N1k3/Q3p1Q1/1Q5B/Q1Q3Q1/4QQ2/1B1Q4/8/2R1KR2 w - - acn 33; acs 0; bm Ba4# >Bf7# >>Nc7# Nd6# Q5g6# Q7g6# Qaa4# Qab5# Qad7# Qaxe7# Qbb5# Qbc6# Qbd8# Qbg6# Qcb5# >>Qcc6# Qcxe7# Qdb5# Qdd7# Qdd8# Qea4# Qec6# Qeg6# Qexe7# Qff7# Qff8# Qg5xe7# >>Qg7xe7# Qg8# Qgf7# Qgf8# Qh5# Qh8#; ce 32766; dm 1; pv Nd6#; Still, the position is not quite legal :-) By retrograde analysis it is not possible to find a legal way to reach this position. For instance, what was the last black move? King to e8... from where? d7, d8 or f8 and f7 are squares where the king is checked by two Q at the same time. That can only happen when you promote giving a discovered check, but none of the queens are in the 8th rank. I _love_ retrograde analysis! (we used to composed few when we were kids with my friends, it brings me nice memories) Regards, Miguel
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