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 Kc6 draw
3 Kc7 draw
4 Kc8 loss in 8 half-moves
5 Ke7 loss in 8 half-moves
6 Ra6 loss in 8 half-moves
7 Rd8 loss in 8 half-moves
8 Kd6 loss in 6 half-moves
9 Kd8 loss in 6 half-moves
10 Ke8 loss in 6 half-moves
11 Ra7 loss in 6 half-moves
12 Ke6 loss in 4 half-moves
13 Ra5 loss in 4 half-moves
14 Ra2 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves
22 Ra1 loss in 1 half-moves