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

EGTB: win in 2 half-moves

# move score
1 b4 win in 1 half-moves
2 Ka6 loss in 2 half-moves
3 Kab6 loss in 2 half-moves
4 Kab7 loss in 2 half-moves
5 Kb8 loss in 2 half-moves
6 Kc5 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kcb6 loss in 2 half-moves
9 Kcb7 loss in 2 half-moves
10 Kd5 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Nb6 loss in 2 half-moves
14 Nc7 loss in 2 half-moves