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 Kd6 draw
3 Kd7 draw
4 Kd8 draw
5 Ke6 draw
6 Kf6 draw
7 Kf7 draw
8 Kf8 draw
9 Ra4 draw
10 Ra5 draw
11 Ra6 draw
12 Ra7 draw
13 Re8 draw
14 Ke8 loss in 4 half-moves
15 Ra1 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves