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

EGTB: draw

# move score
1 Kb5 draw
2 Kb6 draw
3 Kc7 draw
4 Kd5 draw
5 Kd7 draw
6 Na5 draw
7 Nc5 draw
8 Nd6 draw
9 Nd8 draw
10 Kc5 loss in 1 half-moves
11 Kd6 loss in 1 half-moves