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 Ka5 draw
3 Ka7 draw
4 Kb5 draw
5 Kb7 draw
6 Nh4 draw
7 Ne1 loss in 2 half-moves
8 Ne3 loss in 2 half-moves
9 Nf4 loss in 2 half-moves