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

EGTB: win in 2 half-moves

# move score
1 Kb6 win in 1 half-moves
2 Kf6 win in 1 half-moves
3 b4 loss in 2 half-moves
4 Kb7 loss in 2 half-moves
5 Kb8 loss in 2 half-moves
6 Kc8 loss in 2 half-moves
7 Kcd7 loss in 2 half-moves
8 Ke8 loss in 2 half-moves
9 Ked7 loss in 2 half-moves
10 Kf7 loss in 2 half-moves
11 Kf8 loss in 2 half-moves
12 Nb7 loss in 2 half-moves
13 Nf7 loss in 2 half-moves
14 Kc6 loss in 1 half-moves
15 Kcd6 loss in 1 half-moves
16 Ke6 loss in 1 half-moves
17 Ked6 loss in 1 half-moves
18 Nc6 loss in 1 half-moves
19 Ne6 loss in 1 half-moves