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 Rb8 win in 3 half-moves
3 Rf8 win in 5 half-moves
4 K7b8 draw
5 K8b8 draw
6 Ka6 draw
7 Rg1 draw
8 Rg2 draw
9 Rg3 draw
10 Rg7 draw
11 K7b7 loss in 2 half-moves
12 K8b7 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rg6 loss in 2 half-moves