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

EGTB: win in 10 half-moves

# move score
1 Kb1 win in 9 half-moves
2 Kd1 win in 9 half-moves
3 Kd2 win in 9 half-moves
4 Nc2 win in 15 half-moves
5 Kb2 loss in 4 half-moves
6 Kc2 loss in 4 half-moves
7 Nb3 loss in 2 half-moves