Caml1999O005HT')*d( 2"  2" 2"nn(,58!58!g l "8!c8!?9'w$%Potw3P88Problem of the week #3 @*PervasivesA6Moves for a 2x2 grid: ̠ Ԡ@A4@!0 U%U OBFPOy*Pervasives0hK"j+@@@@@