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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Rf8 win in 3 half-moves
3 Ke6 win in 7 half-moves
4 Rb7 win in 23 half-moves
5 Rb8 win in 23 half-moves
6 Kd6 draw
7 Kd7 draw
8 Kd8 draw
9 Ke8 draw
10 Kf8 draw
11 Ra2 draw
12 Rd7 draw
13 Rd8 draw
14 Re8 draw
15 Kf6 loss in 2 half-moves
16 Kf7 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rc8 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves