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

EGTB: win in 2 half-moves

# move score
1 Kb4 win in 1 half-moves
2 b4 loss in 1 half-moves
3 Ka4 loss in 1 half-moves
4 Ka6 loss in 1 half-moves
5 Kb6 loss in 1 half-moves
6 Kc7 loss in 1 half-moves
7 Kc8 loss in 1 half-moves
8 Kd7 loss in 1 half-moves
9 Ke7 loss in 1 half-moves
10 Ke8 loss in 1 half-moves
11 Nc6 loss in 1 half-moves
12 Nc8 loss in 1 half-moves