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

EGTB: win in 4 half-moves

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