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 Ka7 draw
3 Ka8 draw
4 Kb8 draw
5 Kc7 draw
6 Kc8 draw
7 Rb8 draw
8 Rc8 draw
9 Rd8 draw
10 Re8 draw
11 Rf1 draw
12 Rf2 draw
13 Rf7 draw
14 Rh8 draw
15 Ka6 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rf5 loss in 2 half-moves
22 Rf6 loss in 2 half-moves