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

EGTB: win in 4 half-moves

# move score
1 Rh2 win in 3 half-moves
2 Kb3 draw
3 Kb4 draw
4 Kb5 draw
5 Kb6 draw
6 Kb7 draw
7 Kc2 draw
8 Kc4 draw
9 Kc5 draw
10 Kc7 draw
11 Kd2 draw
12 Kd3 draw
13 Ra8 draw
14 Rb8 draw
15 Rc8 draw
16 Rh1 draw
17 Rh3 draw
18 Rh4 draw
19 Kb2 loss in 2 half-moves
20 Kd4 loss in 2 half-moves
21 Kd5 loss in 2 half-moves
22 Kd6 loss in 2 half-moves
23 Kd7 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh5 loss in 2 half-moves
29 Rh6 loss in 2 half-moves
30 Rh7 loss in 2 half-moves