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 Kf1 draw
3 Kf2 draw
4 Kg3 draw
5 Kgg2 draw
6 Kgh2 draw
7 Kh1 draw
8 Khg2 draw
9 Khh2 draw
10 Ra8 draw
11 Kg4 loss in 2 half-moves
12 Kh4 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh5 loss in 2 half-moves
20 Rh6 loss in 2 half-moves
21 Rh7 loss in 2 half-moves