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

EGTB: win in 4 half-moves

# move score
1 Ra6 win in 3 half-moves
2 Ra7 win in 3 half-moves
3 Ra8 win in 3 half-moves
4 Kf6 draw
5 Kf7 draw
6 Kf8 draw
7 Kgg6 draw
8 Kgg8 draw
9 Kgh6 draw
10 Kgh8 draw
11 Khg6 draw
12 Khg8 draw
13 Khh6 draw
14 Khh8 draw
15 Ra4 draw
16 Ra5 draw
17 Rb3 draw
18 Rc3 draw
19 Rd3 draw
20 Re3 draw
21 Ra1 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Rf3 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rh3 loss in 2 half-moves