% Francois Labelle & computer, March 9, 2012
% The 64 examples are the 8 x 8 combinations of a white pawn double-jump
% and a black pawn double-jump.
% They all have:
% - 1 solution in 1.0 move
% - 1 solution in 1.5 moves
% - 1 solution in 2.0 moves.