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

EGTB: win in 4 half-moves

# move score
1 Rh4 win in 3 half-moves
2 Kf4 win in 5 half-moves
3 Rh3 win in 5 half-moves
4 Kf5 win in 7 half-moves
5 Kgg4 draw
6 Kgh4 draw
7 Khh4 draw
8 Rb1 draw
9 Rg1 draw
10 Rh2 draw
11 Kf6 loss in 2 half-moves
12 Kgg6 loss in 2 half-moves
13 Kgh6 loss in 2 half-moves
14 Khg4 loss in 2 half-moves
15 Khg6 loss in 2 half-moves
16 Khh6 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rd1 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Rf1 loss in 2 half-moves