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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Kf6 draw
3 Kf7 draw
4 Kg7 draw
5 Kh6 draw
6 Kh7 draw
7 Ra5 draw
8 Ra7 draw
9 Rc6 draw
10 Rd6 draw
11 Re6 draw
12 Kf5 loss in 2 half-moves
13 Kg5 loss in 2 half-moves
14 Kh5 loss in 2 half-moves
15 Ra1 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Ra8 loss in 1 half-moves