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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Rf7 draw
3 Kh7 loss in 10 half-moves
4 Ra8 loss in 10 half-moves
5 Kf8 loss in 8 half-moves
6 Rg7 loss in 8 half-moves
7 Kh8 loss in 6 half-moves
8 Ra2 loss in 4 half-moves
9 Ra6 loss in 4 half-moves
10 Kf7 loss in 2 half-moves
11 Kg7 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rh7 loss in 2 half-moves
19 Ra1 loss in 1 half-moves