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 Kb7 draw
3 Kb8 draw
4 Kc8 draw
5 Kd7 draw
6 Rc8 draw
7 Re8 draw
8 Rf8 draw
9 Rh6 draw
10 Rh7 draw
11 Kc6 loss in 12 half-moves
12 Kb6 loss in 10 half-moves
13 Kd8 loss in 8 half-moves
14 Kd6 loss in 6 half-moves
15 Rh4 loss in 4 half-moves
16 Ra8 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Rh1 loss in 2 half-moves
20 Rh2 loss in 2 half-moves
21 Rh3 loss in 2 half-moves
22 Rh5 loss in 1 half-moves