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 Ra7 draw
5 K7c8 loss in 2 half-moves
6 K7e8 loss in 2 half-moves
7 Kc6 loss in 2 half-moves
8 Kd6 loss in 2 half-moves
9 Ke6 loss in 2 half-moves
10 K7c7 loss in 1 half-moves
11 K7e7 loss in 1 half-moves
12 K8c7 loss in 1 half-moves
13 K8c8 loss in 1 half-moves
14 K8e7 loss in 1 half-moves
15 K8e8 loss in 1 half-moves
16 Ra3 loss in 1 half-moves
17 Ra4 loss in 1 half-moves
18 Ra5 loss in 1 half-moves
19 Ra6 loss in 1 half-moves
20 Rc8 loss in 1 half-moves