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 Kc7 draw
5 Ra8 draw
6 Ka6 loss in 16 half-moves
7 Kc8 loss in 16 half-moves
8 Rf8 loss in 12 half-moves
9 Kb6 loss in 6 half-moves
10 Kc6 loss in 2 half-moves
11 Rc8 loss in 2 half-moves
12 Rd8 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rh8 loss in 2 half-moves