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

EGTB: win in 4 half-moves

# move score
1 Ra1 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Rb8 win in 3 half-moves
4 Rc6 win in 3 half-moves
5 Rc8 win in 3 half-moves
6 Rf8 win in 3 half-moves
7 Rd8 win in 5 half-moves
8 Ra2 draw
9 Ra3 draw
10 Re8 draw
11 Kc6 loss in 4 half-moves
12 Ke6 loss in 4 half-moves
13 R6a7 loss in 4 half-moves
14 R8a7 loss in 4 half-moves
15 Kc5 loss in 2 half-moves
16 Kc7 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd7 loss in 2 half-moves
19 Ke5 loss in 2 half-moves
20 Ke7 loss in 2 half-moves
21 Ra4 loss in 2 half-moves
22 Ra5 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves