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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Rb2 loss in 10 half-moves
3 Ka7 loss in 2 half-moves
4 Ka8 loss in 2 half-moves
5 Kb7 loss in 2 half-moves
6 Kc7 loss in 2 half-moves
7 Kc8 loss in 2 half-moves
8 Ra3 loss in 2 half-moves
9 Rb4 loss in 2 half-moves
10 Rb5 loss in 2 half-moves
11 Rb6 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rf3 loss in 2 half-moves
14 Rg3 loss in 2 half-moves
15 Rc3 loss in 1 half-moves
16 Rd3 loss in 1 half-moves
17 Re3 loss in 1 half-moves
18 Rh3 loss in 1 half-moves