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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Ka4 win in 5 half-moves
3 Kc4 win in 5 half-moves
4 Nb6 loss in 6 half-moves
5 Ka2 loss in 4 half-moves
6 Kb2 loss in 4 half-moves
7 Kc2 loss in 4 half-moves
8 Ka3 loss in 2 half-moves
9 Kc3 loss in 2 half-moves
10 Nc7 loss in 1 half-moves