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

EGTB: win in 8 half-moves

# move score
1 Kb7 win in 7 half-moves
2 Kb6 draw
3 Kc5 draw
4 Kd5 draw
5 Kd6 draw
6 Na3 draw
7 Nc3 draw
8 Kc7 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Na7 loss in 2 half-moves
11 Nc7 loss in 2 half-moves
12 Nd4 loss in 2 half-moves
13 Nd6 loss in 2 half-moves