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 Nb5 draw
3 Nc2 draw
4 Nc4 draw
5 Kb6 loss in 10 half-moves
6 Ka7 loss in 4 half-moves
7 Ka5 loss in 2 half-moves
8 Kb5 loss in 2 half-moves
9 Nb1 loss in 2 half-moves