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 Kd6 draw
3 Kd7 draw
4 Ke6 draw
5 Kf7 draw
6 Kf8 draw
7 Ra5 draw
8 Ra6 draw
9 Re8 draw
10 Rf8 draw
11 Kf6 loss in 10 half-moves
12 Kd8 loss in 6 half-moves
13 Ke8 loss in 6 half-moves
14 Ra7 loss in 6 half-moves
15 Ra1 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves
22 Ra4 loss in 1 half-moves