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

EGTB: win in 10 half-moves

# move score
1 Kb8 win in 9 half-moves
2 Kd7 win in 15 half-moves
3 Kb7 win in 17 half-moves
4 Kc7 loss in 6 half-moves
5 Kd8 loss in 4 half-moves
6 Nb3 loss in 2 half-moves
7 Nc2 loss in 2 half-moves