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 Ra1 draw
3 Rb2 draw
4 Rb3 draw
5 Rf1 draw
6 K6b6 loss in 2 half-moves
7 K6b7 loss in 2 half-moves
8 K6d6 loss in 2 half-moves
9 K6d7 loss in 2 half-moves
10 K7b6 loss in 2 half-moves
11 K7b7 loss in 2 half-moves
12 K7d6 loss in 2 half-moves
13 K7d7 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kb8 loss in 2 half-moves
16 Kc5 loss in 2 half-moves
17 Kc8 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Kd8 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rc1 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rh1 loss in 2 half-moves