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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Kd6 draw
3 Kd7 draw
4 Ke5 draw
5 Ke7 draw
6 Ra8 draw
7 Rc8 draw
8 Rd8 draw
9 Re8 draw
10 Rf1 draw
11 Rf3 draw
12 Kd5 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Kf6 loss in 2 half-moves
15 Kf7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rf2 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves