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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Kc5 draw
3 Kd5 draw
4 Ke4 draw
5 Ke5 draw
6 Ra4 draw
7 Ra5 draw
8 Ra6 draw
9 Ra7 draw
10 Rf3 draw
11 Kc3 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Ke3 loss in 2 half-moves
15 Kg7 loss in 2 half-moves
16 Kg8 loss in 2 half-moves
17 Kh7 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rc3 loss in 2 half-moves
22 Rd3 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rh3 loss in 2 half-moves