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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Re8 win in 1 half-moves
3 Kh8 draw
4 Rc8 draw
5 Rd8 draw
6 Ra1 loss in 4 half-moves
7 Ra3 loss in 4 half-moves
8 Kf7 loss in 2 half-moves
9 Kf8 loss in 2 half-moves
10 Kg7 loss in 2 half-moves
11 Kh7 loss in 2 half-moves
12 Ra4 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Ra2 loss in 1 half-moves