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

EGTB: win in 4 half-moves

# move score
1 Kf6 win in 3 half-moves
2 Ra7 draw
3 Rf1 draw
4 Rf2 draw
5 Rf3 draw
6 K7f8 loss in 2 half-moves
7 K7h7 loss in 2 half-moves
8 K7h8 loss in 2 half-moves
9 K8f8 loss in 2 half-moves
10 K8h7 loss in 2 half-moves
11 K8h8 loss in 2 half-moves
12 Kg6 loss in 2 half-moves
13 Kh6 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rf8 loss in 2 half-moves