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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Rb7 win in 11 half-moves
4 Ka6 draw
5 Ka8 draw
6 Kb6 draw
7 Kb7 draw
8 Kb8 draw
9 Kc6 draw
10 Kc7 draw
11 Kc8 draw
12 Kd6 draw
13 Kd8 draw
14 Ke6 draw
15 Ke7 draw
16 Ke8 draw
17 Ra3 draw
18 Rb4 draw
19 Rb5 draw
20 Rf3 draw
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rc3 loss in 2 half-moves
24 Rd3 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rh3 loss in 2 half-moves