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