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 Kd5 draw
3 Kd7 draw
4 Ke5 draw
5 Ke7 draw
6 Kf5 draw
7 Kf7 draw
8 Rf3 draw
9 Rf5 draw
10 Rf7 draw
11 Rf8 draw
12 Kd6 loss in 4 half-moves
13 Rg6 loss in 4 half-moves
14 Rh6 loss in 4 half-moves
15 Rf1 loss in 2 half-moves
16 Rf2 loss in 2 half-moves