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

EGTB: draw

# move score
1 b5 draw
2 Ka4 draw
3 Kab5 draw
4 Kb7 draw
5 Kc7 draw
6 Kd5 draw
7 Kd6 draw
8 Kd7 draw
9 Kb4 loss in 4 half-moves
10 Ka6 loss in 3 half-moves
11 Kc5 loss in 3 half-moves
12 Kcb5 loss in 3 half-moves