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 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Rb8 draw
6 Rc8 draw
7 Rd8 draw
8 Re8 draw
9 Rf8 draw
10 Rh8 draw
11 Ka5 loss in 1 half-moves
12 Ka7 loss in 1 half-moves
13 Kg1 loss in 1 half-moves
14 Kg2 loss in 1 half-moves
15 Kh2 loss in 1 half-moves
16 Ra7 loss in 1 half-moves