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

EGTB: win in 4 half-moves

# move score
1 Kg6 win in 3 half-moves
2 Rh8 win in 3 half-moves
3 Rg8 win in 7 half-moves
4 Kef8 draw
5 Kgf8 draw
6 Ra8 draw
7 Rb8 draw
8 Rf8 draw
9 Kd6 loss in 2 half-moves
10 Kd7 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Ke6 loss in 2 half-moves
13 Kg8 loss in 2 half-moves
14 Kh6 loss in 2 half-moves
15 Kh7 loss in 2 half-moves
16 Kh8 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Kef6 loss in 1 half-moves
20 Kef7 loss in 1 half-moves
21 Kgf6 loss in 1 half-moves
22 Kgf7 loss in 1 half-moves