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

EGTB: win in 4 half-moves

# move score
1 Na6 win in 3 half-moves
2 Kc5 loss in 14 half-moves
3 Ka5 loss in 12 half-moves
4 Kb5 loss in 10 half-moves
5 Ka6 loss in 8 half-moves
6 Ka7 loss in 2 half-moves
7 Kb7 loss in 2 half-moves
8 Kc6 loss in 2 half-moves
9 Na2 loss in 2 half-moves
10 Nc2 loss in 2 half-moves
11 Nc6 loss in 2 half-moves
12 Nd3 loss in 2 half-moves
13 Nd5 loss in 2 half-moves
14 Kc7 loss in 1 half-moves