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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kd7 win in 7 half-moves
3 Kd8 win in 7 half-moves
4 Kb7 win in 9 half-moves
5 Kb8 win in 9 half-moves
6 Na3 draw
7 Nc3 draw
8 Nc7 draw
9 Nd4 draw
10 Nd6 draw
11 Na7 loss in 10 half-moves