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

EGTB: win in 2 half-moves

# move score
1 Kab7 win in 1 half-moves
2 Kc7 win in 1 half-moves
3 Kcb7 win in 1 half-moves
4 Kd7 win in 1 half-moves
5 Ka7 loss in 2 half-moves
6 Kd8 loss in 2 half-moves
7 Kab8 loss in 1 half-moves
8 Kcb8 loss in 1 half-moves