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

EGTB: draw

# move score
1 Kb5 draw
2 Kc3 draw
3 Kd5 draw
4 Kb4 loss in 32 half-moves
5 Kc5 loss in 32 half-moves
6 Kb3 loss in 20 half-moves
7 Kd3 loss in 2 half-moves
8 Kd4 loss in 2 half-moves