Author: Roy Eassa
Date: 14:41:07 04/24/02
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On April 24, 2002 at 17:17:46, Hans van der Zijden wrote: >On April 24, 2002 at 14:44:07, Roy Eassa wrote: > >> >>You have a 3x3 chessboard as follows: >> >>White's king is on c2. >>White has pawns on a2, a3, and b3. >>White has a queen on c3. >>White has a rook on c1. >>White has bishops on b1 and b2. >>Square a1 is empty. >> >>White makes consectutive moves with the goal of getting his king to a1 in as few >>moves as possible, with the following constraints: >> >>1) White must NEVER move the king to b2. >>2) No pawn or piece can leave the 3x3 chessboard (i.e., the pawns cannot move at >>all). >> >>What's the shortest solution? >> >> >>[Adapted from H.E. Dedeney 1922.] > >1.Ba1 2.Qb2 3.Kc3 4.Bc2 5.Rb1 6.Qc1 7.Bb2 8.Ra1 9.Bb1 10.Kc2 11.Bc3 12.Qb2 >13.Kc1 14.Bc2 15.Rb1 16.Qa1 17.Rb2 18.Bb1 19.Rc2 20.Bb2 21.Rc3 22.Bc2 23.Kb1 >24.Bc1 25.Qb2 26.Ka1 > >No computer was used in finding this solution. > >Hans Good job! You found what looks to be the optimal solution.
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