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

EGTB: draw

# move score
1 Kb6 draw
2 Kc6 draw
3 Kd6 draw
4 Kd7 draw
5 Kd8 draw
6 Nb2 draw
7 Nc3 draw
8 Ne3 draw
9 Nf2 draw
10 Kb7 loss in 4 half-moves
11 Kb8 loss in 4 half-moves
12 Kc8 loss in 4 half-moves