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

EGTB: win in 2 half-moves

# move score
1 Kb3 win in 1 half-moves
2 b4 loss in 2 half-moves
3 Ka1 loss in 2 half-moves
4 Kb1 loss in 2 half-moves
5 Kb2 loss in 2 half-moves
6 Kd7 loss in 2 half-moves
7 Ke7 loss in 2 half-moves
8 Ke8 loss in 2 half-moves
9 Ka3 loss in 1 half-moves
10 Kc7 loss in 1 half-moves
11 Kc8 loss in 1 half-moves