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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kb4 loss in 20 half-moves
3 Na7 loss in 18 half-moves
4 Kb3 loss in 12 half-moves
5 Ka4 loss in 8 half-moves
6 Ka2 loss in 6 half-moves
7 Nc3 loss in 2 half-moves
8 Nc7 loss in 2 half-moves
9 Nd4 loss in 2 half-moves
10 Nd6 loss in 1 half-moves