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 Ka4 draw
3 Ka6 draw
4 Kb4 draw
5 Kb5 draw
6 Kb6 draw
7 Kd6 draw
8 Kd7 draw
9 Kd8 draw
10 Rf1 draw
11 Rf2 draw
12 Rf3 draw
13 Rf8 draw
14 Rg7 draw
15 Rh7 draw
16 Ke6 loss in 1 half-moves
17 Ke8 loss in 1 half-moves
18 Kf6 loss in 1 half-moves
19 Kf8 loss in 1 half-moves
20 Rf5 loss in 1 half-moves
21 Rf6 loss in 1 half-moves