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

EGTB: win in 4 half-moves

# move score
1 b2 win in 3 half-moves
2 Ka7 draw
3 Kbb8 draw
4 Kcc7 draw
5 Ka8 loss in 4 half-moves
6 Kcb8 loss in 4 half-moves
7 Kd7 loss in 4 half-moves
8 Kd8 loss in 4 half-moves
9 Kbc7 loss in 3 half-moves
10 Ka6 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Kc6 loss in 2 half-moves