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 Nf6 draw
5 Ka7 loss in 10 half-moves
6 Nf8 loss in 2 half-moves
7 Ng5 loss in 2 half-moves
8 Ka5 loss in 1 half-moves