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 Rb5 win in 5 half-moves
3 Rb6 win in 5 half-moves
4 Rb1 win in 11 half-moves
5 Ra3 draw
6 Rb2 draw
7 Rb8 draw
8 Rg3 draw
9 Rh3 draw
10 Kc4 loss in 2 half-moves
11 Kc5 loss in 2 half-moves
12 Kc6 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Kdd6 loss in 2 half-moves
16 Kde5 loss in 2 half-moves
17 Ke4 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ked6 loss in 2 half-moves
20 Kee5 loss in 2 half-moves
21 Kf5 loss in 2 half-moves
22 Kf6 loss in 2 half-moves
23 Kf7 loss in 2 half-moves
24 Rb4 loss in 2 half-moves
25 Rc3 loss in 2 half-moves
26 Rd3 loss in 2 half-moves
27 Re3 loss in 2 half-moves
28 Rf3 loss in 2 half-moves