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

EGTB: win in 4 half-moves

# move score
1 Rh8 win in 3 half-moves
2 K4h4 draw
3 K4h5 draw
4 K5h4 draw
5 K5h5 draw
6 Kf3 draw
7 Kg3 draw
8 Kg6 draw
9 Kh3 draw
10 Kh6 draw
11 Ra8 draw
12 Rb8 draw
13 K4f4 loss in 2 half-moves
14 K4f5 loss in 2 half-moves
15 K5f4 loss in 2 half-moves
16 K5f5 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg6 loss in 2 half-moves
23 Rg7 loss in 2 half-moves