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

EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Re8 win in 3 half-moves
3 Rf8 win in 3 half-moves
4 Rg8 win in 3 half-moves
5 Rb1 draw
6 Rb2 draw
7 Rb3 draw
8 Rb6 draw
9 Rc8 draw
10 Rh8 draw
11 Kd1 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Ke3 loss in 2 half-moves
14 Kee2 loss in 2 half-moves
15 Kef1 loss in 2 half-moves
16 Kf3 loss in 2 half-moves
17 Kfe2 loss in 2 half-moves
18 Kff1 loss in 2 half-moves
19 Kg1 loss in 2 half-moves
20 Kg2 loss in 2 half-moves
21 Kg3 loss in 2 half-moves
22 Ra8 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rb5 loss in 2 half-moves
25 Rb7 loss in 2 half-moves