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

EGTB: win in 14 half-moves

# move score
1 Kd8 win in 13 half-moves
2 Kcc8 win in 15 half-moves
3 Kbb8 win in 17 half-moves
4 b3 loss in 4 half-moves
5 Ka7 loss in 4 half-moves
6 Kcb8 loss in 4 half-moves
7 Kd7 loss in 4 half-moves
8 Kbc8 loss in 3 half-moves
9 Ka6 loss in 2 half-moves
10 Kbb6 loss in 2 half-moves
11 Kbc6 loss in 2 half-moves
12 Kcb6 loss in 2 half-moves
13 Kcc6 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Nb6 loss in 2 half-moves