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

EGTB: win in 4 half-moves

# move score
1 Rf3 win in 3 half-moves
2 Ke3 win in 7 half-moves
3 Rf4 win in 7 half-moves
4 Rf5 win in 7 half-moves
5 Rf7 win in 7 half-moves
6 Rf8 win in 7 half-moves
7 Kd3 win in 11 half-moves
8 Kd4 win in 11 half-moves
9 Kf4 win in 11 half-moves
10 Ra6 win in 11 half-moves
11 Rb6 win in 11 half-moves
12 Rc6 win in 11 half-moves
13 Re6 win in 11 half-moves
14 Rd6 win in 13 half-moves
15 Ke5 win in 15 half-moves
16 Kf5 win in 21 half-moves
17 Kd5 draw
18 Kf3 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rf2 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rh6 loss in 2 half-moves