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

EGTB: draw

# move score
1 Ka6 draw
2 Kab7 draw
3 Kab8 draw
4 Kb6 draw
5 Kcb8 draw
6 Kd7 draw
7 Kd8 draw
8 Ka8 loss in 4 half-moves
9 Kc7 loss in 4 half-moves
10 Kcb7 loss in 4 half-moves
11 b2 loss in 2 half-moves