Author: Larry Griffiths
Date: 07:31:50 07/30/00
Go up one level in this thread
On July 30, 2000 at 10:23:27, Tim Foden wrote: >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?? Looks like I have a major case of the "Duh's". Yep, I see it now Tim. Guess Im spending too many hours programming on my chess program lately. Spent an hour looking over my code for castleing yesterday just to find that I used an "&" instead of an "|" in my code. It was another case of the "Duh's" :) Thanks Tim!
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