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 K7d7 draw
3 K7d8 draw
4 K8d7 draw
5 K8d8 draw
6 Rd6 draw
7 K7b7 loss in 2 half-moves
8 K7b8 loss in 2 half-moves
9 K8b7 loss in 2 half-moves
10 K8b8 loss in 2 half-moves
11 Kc6 loss in 2 half-moves
12 Ra6 loss in 2 half-moves
13 Rb1 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Rf6 loss in 2 half-moves
22 Rg6 loss in 2 half-moves
23 Rh6 loss in 2 half-moves
24 Kd6 loss in 1 half-moves