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 Kc7 draw
3 Kc8 draw
4 Kd7 draw
5 Ke7 draw
6 Ke8 draw
7 Re8 draw
8 Rf6 draw
9 Rf7 draw
10 Rh8 loss in 8 half-moves
11 Rf4 loss in 4 half-moves
12 Rf5 loss in 4 half-moves
13 Rf1 loss in 2 half-moves
14 Rf2 loss in 2 half-moves
15 Rf3 loss in 2 half-moves