Author: Tim Foden
Date: 07:23:27 07/30/00
Go up one level in this thread
On July 30, 2000 at 10:03:04, Larry Griffiths wrote: >I entered the following position in Crafty in the hopes of finding how many >moves were generated when pawn promotion occurs. I am thinking that Crafty will >show the pawn promoting to all 4 piece types I get the following results. >It looks like ply 1 is combining both the white and the black moves and I do not >know what is happening at ply 2. > > >White(1): display > > +---+---+---+---+---+---+---+---+ > 8 | *K| | | | | | | | > +---+---+---+---+---+---+---+---+ > 7 | | | | | | | | P | > +---+---+---+---+---+---+---+---+ > 6 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > 5 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > 4 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > 3 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > 2 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > 1 | | | | | | | | K | > +---+---+---+---+---+---+---+---+ > a b c d e f g h > >White(1): perft 1 >total moves=7 time=0.00 >White(1): perft 2 >total moves=19 time=0.00 >White(1): Sorry... hit enter too early on previous post White's moves and black's replies: Kg1 ... Ka7 Kb7 Kb8 Kg2 ... Ka7 Kb7 Kb8 Kg3 ... Ka7 Kb7 Kb8 h8=Q+ ... Ka7 Kb7 h8=R+ ... Ka7 Kb7 h8=B ... Ka7 Kb7 Kb8 h8=N ... Ka7 Kb7 Kb8 -------------------------- 7 moves ... 19 moves perft 1 looks ok. perft 2 looks to only include blacks moves??
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