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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Kd4 draw
6 Kd5 draw
7 Ke5 draw
8 Kf3 draw
9 Kf4 draw
10 Kf5 draw
11 Rf4 draw
12 Rg3 draw
13 Rg5 draw
14 Rg6 draw
15 Rg7 draw
16 Rh4 draw
17 Kd3 loss in 2 half-moves
18 Ke3 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rg2 loss in 2 half-moves