Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Kb7 win in 1 half-moves
3 Ka6 loss in 14 half-moves
4 Ka7 loss in 14 half-moves
5 Kc6 loss in 14 half-moves
6 Kc7 loss in 14 half-moves
7 Ka5 loss in 2 half-moves
8 Kc5 loss in 2 half-moves