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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Ka8 draw
3 Kb7 draw
4 Kb8 draw
5 Ra8 draw
6 Re8 draw
7 Rf6 draw
8 Rf7 draw
9 Rh8 draw
10 Kb6 loss in 8 half-moves
11 Ka6 loss in 6 half-moves
12 Rb8 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Rf1 loss in 2 half-moves
16 Rf2 loss in 2 half-moves
17 Rf3 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rf5 loss in 1 half-moves