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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kd3 draw
5 Kd4 draw
6 Ke3 draw
7 Kf3 draw
8 Kf4 draw
9 Ra1 draw
10 Ra2 draw
11 Ra3 draw
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Ke5 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves