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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb8 win in 3 half-moves
3 Rb8 win in 3 half-moves
4 Kcc7 win in 7 half-moves
5 Kcd7 win in 7 half-moves
6 Ra7 win in 7 half-moves
7 Kc5 win in 9 half-moves
8 Kc6 draw
9 Kd5 draw
10 Kd8 draw
11 Kdc7 draw
12 Kdd7 draw
13 Ke7 draw
14 Ra1 draw
15 Ra6 draw
16 Ke5 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Ra5 loss in 2 half-moves