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

EGTB: win in 4 half-moves

# move score
1 Ka5 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Ka6 draw
4 Ka7 draw
5 Kc6 draw
6 Kc7 draw
7 Na5 loss in 12 half-moves
8 Kc5 loss in 2 half-moves
9 Nc5 loss in 2 half-moves
10 Nd6 loss in 2 half-moves
11 Nd8 loss in 2 half-moves