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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Kc6 draw
3 Kc7 draw
4 Kd6 draw
5 Ke6 draw
6 Ke7 draw
7 Ra3 draw
8 Ra5 draw
9 Ra6 draw
10 Rd8 draw
11 Re8 draw
12 Rf8 draw
13 Kc8 loss in 4 half-moves
14 Kd8 loss in 4 half-moves
15 Ke8 loss in 4 half-moves
16 Ra7 loss in 4 half-moves
17 Ra1 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Rb8 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves