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

EGTB: win in 14 half-moves

# move score
1 b4 win in 13 half-moves
2 Ka6 win in 13 half-moves
3 Kb6 win in 13 half-moves
4 Ka4 win in 15 half-moves
5 Kb4 win in 15 half-moves
6 Kd7 win in 15 half-moves
7 Kd8 win in 17 half-moves
8 Kb7 loss in 8 half-moves
9 Kb8 loss in 6 half-moves
10 Na8 loss in 4 half-moves
11 Na6 loss in 3 half-moves
12 Nd5 loss in 3 half-moves
13 Ne6 loss in 3 half-moves
14 Ne8 loss in 3 half-moves