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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Rb6 win in 5 half-moves
4 Ke6 draw
5 Ke7 draw
6 Ke8 draw
7 Kf6 draw
8 Kf8 draw
9 Kfg7 draw
10 Kfg8 draw
11 Kg6 draw
12 Kh7 draw
13 Khg7 draw
14 Khg8 draw
15 Ra4 draw
16 Rb3 draw
17 Rb5 draw
18 Rc4 draw
19 Rd4 draw
20 Re4 draw
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rh4 loss in 2 half-moves