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

EGTB: draw

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