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 Rf7 win in 3 half-moves
3 Kg6 win in 5 half-moves
4 Kg7 win in 5 half-moves
5 Rg8 win in 5 half-moves
6 Rh8 win in 9 half-moves
7 Kd8 win in 13 half-moves
8 Kh7 win in 13 half-moves
9 Kc7 win in 29 half-moves
10 Kd7 win in 29 half-moves
11 Kb7 draw
12 Kb8 draw
13 Kg5 draw
14 Kh5 draw
15 Re8 draw
16 Rf3 draw
17 Rf4 draw
18 Rf5 draw
19 Rd8 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rf2 loss in 2 half-moves