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

EGTB: win in 2 half-moves

# move score
1 Rh8 win in 1 half-moves
2 Rh6 win in 3 half-moves
3 Rh7 win in 3 half-moves
4 Ra5 draw
5 Rb5 draw
6 Rd5 draw
7 Kf1 loss in 2 half-moves
8 Kf2 loss in 2 half-moves
9 Kg3 loss in 2 half-moves
10 Kgg2 loss in 2 half-moves
11 Kgh1 loss in 2 half-moves
12 Kh3 loss in 2 half-moves
13 Khg2 loss in 2 half-moves
14 Khh1 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Re5 loss in 2 half-moves
17 Rf5 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rh3 loss in 2 half-moves
20 Rh4 loss in 2 half-moves