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

EGTB: win in 4 half-moves

# move score
1 Kab7 win in 3 half-moves
2 Ka7 draw
3 Kb6 draw
4 Kc8 draw
5 Kcb7 draw
6 Kcb8 draw
7 Kab8 loss in 2 half-moves
8 Kc6 loss in 2 half-moves
9 Kd6 loss in 1 half-moves
10 Kd7 loss in 1 half-moves
11 Kd8 loss in 1 half-moves