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

EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Kb8 draw
3 Kcd7 draw
4 Kd6 draw
5 Kd8 draw
6 Kf6 draw
7 Rg3 draw
8 Rg7 draw
9 Rg8 draw
10 Rh6 draw
11 Kb7 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kd5 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ked7 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rg2 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves