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

EGTB: win in 2 half-moves

# move score
1 Ka5 win in 1 half-moves
2 Ka6 win in 1 half-moves
3 Ka7 win in 1 half-moves
4 Kb5 loss in 58 half-moves
5 Kc5 loss in 58 half-moves
6 Kb7 loss in 52 half-moves
7 Kc6 loss in 52 half-moves
8 Kc7 loss in 50 half-moves