Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rf1 win in 1 half-moves
2 Ke7 draw
3 Kf7 draw
4 Rf2 draw
5 Rf3 draw
6 Rf4 draw
7 Rf5 draw
8 Rf6 draw
9 Rg8 loss in 14 half-moves
10 Rh8 loss in 12 half-moves
11 Kd7 loss in 2 half-moves
12 Kd8 loss in 2 half-moves
13 Rf7 loss in 2 half-moves