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

EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 Rc6 win in 5 half-moves
3 Rf8 win in 5 half-moves
4 Rh8 win in 5 half-moves
5 Kc6 draw
6 Kf6 draw
7 Kf7 draw
8 Kf8 draw
9 Kg6 draw
10 Kg8 draw
11 Kh6 draw
12 Kh7 draw
13 Kh8 draw
14 Ra8 draw
15 Re8 draw
16 Rg8 draw
17 Kb4 loss in 2 half-moves
18 Kb5 loss in 2 half-moves
19 Kb6 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Kd6 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rd8 loss in 2 half-moves