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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rb5 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Rb8 win in 3 half-moves
5 Rb6 win in 5 half-moves
6 Kb5 draw
7 Kb6 draw
8 Kb7 draw
9 Kc5 draw
10 Kc7 draw
11 Kd6 draw
12 Kd7 draw
13 Kf7 draw
14 Kf8 draw
15 Kg7 draw
16 Kh7 draw
17 Kh8 draw
18 Ra3 draw
19 Rc3 draw
20 Rd3 draw
21 Re3 draw
22 Kd5 loss in 2 half-moves
23 Rb1 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Rf3 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rh3 loss in 2 half-moves