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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rc4 win in 5 half-moves
3 Kb4 draw
4 Kb5 draw
5 Kb6 draw
6 Kc4 draw
7 Kc6 draw
8 Kcd4 draw
9 Kcd5 draw
10 Kd6 draw
11 Ked4 draw
12 Ra2 draw
13 Ra5 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 Ra1 loss in 2 half-moves
23 Ra3 loss in 2 half-moves
24 Ra6 loss in 2 half-moves
25 Ra7 loss in 2 half-moves
26 Ra8 loss in 2 half-moves