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

EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Ke7 draw
3 Ke8 draw
4 Kf7 draw
5 Kfg7 draw
6 Kfg8 draw
7 Kh7 draw
8 Khg7 draw
9 Khg8 draw
10 Rb5 draw
11 Rf1 draw
12 Rf6 draw
13 Rg5 draw
14 Rh5 draw
15 Ra5 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Re5 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Rf3 loss in 2 half-moves
21 Rf4 loss in 2 half-moves