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 Ke5 draw
4 Ke7 draw
5 Kf5 draw
6 Rb7 draw
7 Rf3 draw
8 Rf6 draw
9 Rf8 draw
10 Rg7 draw
11 Kd6 loss in 10 half-moves
12 Rh7 loss in 8 half-moves
13 Kf6 loss in 6 half-moves
14 Re7 loss in 6 half-moves
15 Kd7 loss in 4 half-moves
16 Ra7 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rf2 loss in 2 half-moves
21 Rf5 loss in 2 half-moves