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

EGTB: win in 6 half-moves

# move score
1 Kb1 win in 5 half-moves
2 Kd1 win in 5 half-moves
3 Bb1 win in 7 half-moves
4 Kcb2 win in 7 half-moves
5 Kd2 win in 7 half-moves
6 Kcc2 win in 11 half-moves
7 Ka3 loss in 2 half-moves
8 Ka4 loss in 2 half-moves
9 Kbb2 loss in 2 half-moves
10 Kbc2 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kb4 loss in 1 half-moves
13 Kc3 loss in 1 half-moves