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

EGTB: win in 2 half-moves

# move score
1 Kb2 win in 1 half-moves
2 Kb4 loss in 4 half-moves
3 Kc4 loss in 4 half-moves
4 Ka4 loss in 3 half-moves
5 b5 loss in 2 half-moves
6 Ka3 loss in 2 half-moves
7 Ka7 loss in 2 half-moves
8 Kb7 loss in 2 half-moves
9 Kb8 loss in 2 half-moves
10 Kc3 loss in 2 half-moves
11 Ka2 loss in 1 half-moves
12 Kc2 loss in 1 half-moves