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 Kc1 draw
3 Kc2 draw
4 Kd2 draw
5 Ke1 draw
6 Ke2 draw
7 Ke6 draw
8 Ke7 draw
9 Ke8 draw
10 Kf6 draw
11 Kf8 draw
12 Kg6 draw
13 Kg7 draw
14 Kg8 draw
15 Rf2 draw
16 Rf3 draw
17 Rg1 draw
18 Rh1 draw
19 Re1 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rf6 loss in 2 half-moves