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 Kc7 draw
3 Kd7 draw
4 Ke6 draw
5 Ke7 draw
6 Rc8 draw
7 Rf5 draw
8 Rf6 draw
9 Rf7 draw
10 Rb8 loss in 6 half-moves
11 Kc6 loss in 4 half-moves
12 Rd8 loss in 4 half-moves
13 Kc5 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves
19 Ra8 loss in 1 half-moves
20 Rf1 loss in 1 half-moves
21 Rf2 loss in 1 half-moves
22 Rf3 loss in 1 half-moves