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 Ra1 draw
3 Ra6 draw
4 Ra7 draw
5 Ra8 draw
6 Rf4 draw
7 Rg4 draw
8 Rh4 draw
9 Kc5 loss in 2 half-moves
10 Kc6 loss in 2 half-moves
11 Kc8 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ke8 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra3 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
21 Re4 loss in 2 half-moves
22 K6c7 loss in 1 half-moves
23 K6d7 loss in 1 half-moves
24 K6e7 loss in 1 half-moves
25 K8c7 loss in 1 half-moves
26 K8d7 loss in 1 half-moves
27 K8e7 loss in 1 half-moves