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 Kb6 draw
3 Kb7 draw
4 Kc7 draw
5 Kd6 draw
6 Nc7 draw
7 Nd6 draw
8 Nf6 draw
9 Ng7 draw
10 Kd7 loss in 46 half-moves
11 Kc5 loss in 2 half-moves
12 Kd5 loss in 2 half-moves