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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Rb4 win in 3 half-moves
4 Kcd5 win in 5 half-moves
5 Rc4 win in 5 half-moves
6 Kb7 draw
7 Kc5 draw
8 Kc7 draw
9 Kd4 draw
10 Kd6 draw
11 Kd7 draw
12 Ra1 draw
13 Ra6 draw
14 Rd4 draw
15 Kd3 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Ke5 loss in 2 half-moves
18 Ked5 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Kf4 loss in 2 half-moves
21 Kf5 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Ra3 loss in 2 half-moves
24 Ra5 loss in 2 half-moves
25 Ra7 loss in 2 half-moves
26 Ra8 loss in 2 half-moves