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 Ra1 draw
3 Ra2 draw
4 Ra3 draw
5 Kf7 loss in 2 half-moves
6 Kf8 loss in 2 half-moves
7 Kgg7 loss in 2 half-moves
8 Kgh7 loss in 2 half-moves
9 Khg7 loss in 2 half-moves
10 Khh7 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Ra5 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves