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 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Kd7 draw
6 Kd8 draw
7 Ke8 draw
8 Kf7 draw
9 Kf8 draw
10 Ra4 draw
11 Rb4 draw
12 Rc4 draw
13 Rd4 draw
14 Rh5 draw
15 Rh6 draw
16 Rh7 draw
17 Kd6 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Kf6 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rg4 loss in 2 half-moves
23 Rh1 loss in 2 half-moves
24 Rh2 loss in 2 half-moves
25 Rh3 loss in 2 half-moves