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

EGTB: win in 22 half-moves

# move score
1 Kb8 win in 21 half-moves
2 K8c7 loss in 4 half-moves
3 K6c7 loss in 3 half-moves
4 b5 loss in 2 half-moves
5 K6d7 loss in 2 half-moves
6 K8d7 loss in 2 half-moves
7 Kb5 loss in 2 half-moves
8 Kc5 loss in 2 half-moves
9 Kd5 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Na5 loss in 2 half-moves
13 Nc5 loss in 2 half-moves
14 Nd6 loss in 2 half-moves
15 Nd8 loss in 2 half-moves