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

EGTB: win in 2 half-moves

# move score
1 Kb2 win in 1 half-moves
2 Kc2 win in 1 half-moves
3 Kd2 win in 1 half-moves
4 Nb6 win in 1 half-moves
5 Nc7 loss in 10 half-moves
6 Kb1 loss in 4 half-moves
7 Kd1 loss in 2 half-moves