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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Kf4 win in 7 half-moves
4 Ke5 win in 9 half-moves
5 Kf5 win in 9 half-moves
6 Kg5 win in 9 half-moves
7 Kg6 win in 9 half-moves
8 Kh5 win in 11 half-moves
9 Rc8 win in 11 half-moves
10 Kd3 draw
11 Kd4 draw
12 Kd5 draw
13 Kg7 draw
14 Kh7 draw
15 Ra8 draw
16 Rb3 draw
17 Rb4 draw
18 Rb7 draw
19 Rd8 draw
20 Re8 draw
21 Ke3 loss in 2 half-moves
22 Kf3 loss in 2 half-moves
23 Rb1 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Rf8 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves