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

EGTB: win in 4 half-moves

# move score
1 Ka4 win in 3 half-moves
2 Ka5 win in 3 half-moves
3 Ka6 win in 3 half-moves
4 Kbc6 win in 3 half-moves
5 Kc4 win in 3 half-moves
6 Ra7 win in 3 half-moves
7 Kc5 win in 5 half-moves
8 Kd7 win in 13 half-moves
9 Kb4 win in 17 half-moves
10 Kbb6 draw
11 Kb8 loss in 2 half-moves
12 Kc8 loss in 2 half-moves
13 Kcb6 loss in 2 half-moves
14 Kcc6 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd8 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb8 loss in 2 half-moves