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

EGTB: draw

# move score
1 b3 draw
2 Kaa7 draw
3 Kb5 draw
4 Kbb7 draw
5 Ka5 loss in 4 half-moves
6 Kab7 loss in 4 half-moves
7 Kb6 loss in 4 half-moves
8 Ka8 loss in 3 half-moves
9 Kba7 loss in 3 half-moves
10 Kc7 loss in 2 half-moves
11 Kc8 loss in 2 half-moves