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 Ka6 draw
3 Kb6 draw
4 Kb7 draw
5 Kb8 draw
6 Ra8 draw
7 Rd8 draw
8 Re4 draw
9 Re6 draw
10 Re7 draw
11 Rf8 draw
12 Ka8 loss in 10 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Re2 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Re5 loss in 2 half-moves
19 Rh8 loss in 2 half-moves