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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb6 draw
3 Kb8 draw
4 Nb5 draw
5 Nc2 draw
6 Nc4 draw
7 Ka6 loss in 4 half-moves
8 Ka8 loss in 4 half-moves
9 Nb1 loss in 4 half-moves