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 Kb8 draw
3 Kc7 draw
4 Kd7 draw
5 Kd8 draw
6 Nb4 draw
7 Nc5 draw
8 Nc7 loss in 14 half-moves
9 Nb8 loss in 8 half-moves