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 Rd5 win in 1 half-moves
3 Ka6 loss in 2 half-moves
4 Ka7 loss in 2 half-moves
5 Ka8 loss in 2 half-moves
6 Kb6 loss in 2 half-moves
7 Kb8 loss in 2 half-moves
8 Kc6 loss in 2 half-moves
9 Kc7 loss in 2 half-moves
10 Kc8 loss in 2 half-moves
11 Ra5 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rg5 loss in 2 half-moves
18 Rh5 loss in 2 half-moves
19 Re5 loss in 1 half-moves
20 Rf5 loss in 1 half-moves