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 Ka5 loss in 2 half-moves
3 Ka7 loss in 2 half-moves
4 Kb6 loss in 2 half-moves
5 Kb7 loss in 2 half-moves
6 Ke5 loss in 2 half-moves
7 Ke6 loss in 2 half-moves
8 Ke7 loss in 2 half-moves
9 Kf5 loss in 2 half-moves
10 Kf7 loss in 2 half-moves
11 Kg5 loss in 2 half-moves
12 Kg6 loss in 2 half-moves
13 Kg7 loss in 2 half-moves