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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb5 draw
3 Kc5 draw
4 Kd5 draw
5 Kd6 draw
6 Nb4 draw
7 Nc1 draw
8 Nc3 draw
9 Kb7 loss in 14 half-moves
10 Kc7 loss in 4 half-moves
11 Kd7 loss in 2 half-moves