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

EGTB: draw

# move score
1 b4 draw
2 Ka8 draw
3 Kab6 draw
4 Kab7 draw
5 Kb8 draw
6 Kc5 draw
7 Kcb6 draw
8 Kd5 draw
9 Kd6 draw
10 Kd7 draw
11 Kc7 loss in 4 half-moves
12 Kcb7 loss in 4 half-moves
13 Ka6 loss in 3 half-moves