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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb8 draw
3 Kc7 draw
4 Kd7 draw
5 Kd8 draw
6 Nc5 draw
7 Nc7 draw
8 Nd4 draw
9 Ng5 loss in 12 half-moves
10 Ng7 loss in 10 half-moves
11 Nd8 loss in 8 half-moves
12 Nf8 loss in 8 half-moves
13 Nf4 loss in 6 half-moves