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

EGTB: win in 2 half-moves

# move score
1 Rf3 win in 1 half-moves
2 Kd6 draw
3 Kd7 draw
4 Kd8 draw
5 Rf4 draw
6 Rf5 draw
7 Rf6 draw
8 Rf8 draw
9 Rg7 draw
10 Rh7 draw
11 Ke6 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Kf6 loss in 2 half-moves
14 Kf8 loss in 2 half-moves
15 Rf1 loss in 2 half-moves
16 Rf2 loss in 2 half-moves