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 draw
3 Kf5 draw
4 Kgg4 draw
5 Kgh4 draw
6 Kgh6 draw
7 Khh4 draw
8 Khh6 draw
9 Rb1 draw
10 Rg1 draw
11 Rh2 draw
12 Rh3 draw
13 Kf6 loss in 2 half-moves
14 Kgg6 loss in 2 half-moves
15 Khg4 loss in 2 half-moves
16 Khg6 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