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

EGTB: win in 4 half-moves

# move score
1 Kd4 win in 3 half-moves
2 Kb4 win in 5 half-moves
3 Kb5 win in 11 half-moves
4 Kb6 win in 11 half-moves
5 Kc4 draw
6 Kc6 draw
7 Kd5 draw
8 Kd6 draw
9 Na5 draw
10 Nd6 loss in 2 half-moves
11 Nd8 loss in 2 half-moves