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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kc7 draw
3 Kd5 draw
4 Kd6 draw
5 Kd7 draw
6 Nc8 draw
7 Ng6 draw
8 Ng8 loss in 6 half-moves
9 Kb7 loss in 2 half-moves
10 Nd5 loss in 2 half-moves
11 Nf5 loss in 2 half-moves
12 Kb6 loss in 1 half-moves
13 Kc5 loss in 1 half-moves