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 Kc5 draw
4 Kd6 draw
5 Kb7 loss in 50 half-moves
6 Kc7 loss in 50 half-moves
7 Kd7 loss in 50 half-moves
8 Kd5 loss in 2 half-moves