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

EGTB: draw

# move score
1 K6b7 draw
2 Kb5 draw
3 b5 loss in 4 half-moves
4 K6a7 loss in 4 half-moves
5 Ka5 loss in 4 half-moves
6 K8a7 loss in 3 half-moves
7 K8b7 loss in 3 half-moves
8 Kb8 loss in 3 half-moves