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

EGTB: win in 8 half-moves

# move score
1 b4 win in 7 half-moves
2 K6b6 win in 11 half-moves
3 Ka5 win in 11 half-moves
4 Kb8 win in 11 half-moves
5 K6b7 loss in 4 half-moves
6 K7b7 loss in 4 half-moves
7 Ka8 loss in 4 half-moves
8 Nc5 loss in 4 half-moves
9 Nd8 loss in 4 half-moves
10 K7b6 loss in 3 half-moves
11 Nc7 loss in 3 half-moves
12 Nd4 loss in 3 half-moves
13 Nf4 loss in 2 half-moves
14 Nf8 loss in 2 half-moves
15 Ng5 loss in 2 half-moves
16 Ng7 loss in 2 half-moves