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

EGTB: win in 2 half-moves

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