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

EGTB: win in 6 half-moves

# move score
1 Kb7 win in 5 half-moves
2 Ka5 loss in 4 half-moves
3 Ka7 loss in 4 half-moves
4 Kb5 loss in 2 half-moves
5 Kb6 loss in 2 half-moves
6 Nb1 loss in 2 half-moves
7 Nb5 loss in 2 half-moves
8 Nc2 loss in 2 half-moves
9 Nc4 loss in 2 half-moves