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 Kd7 draw
3 Ke7 draw
4 Rf1 draw
5 Rf2 draw
6 Rf3 draw
7 Rf5 draw
8 Rf7 draw
9 Kc7 loss in 2 half-moves
10 Kc8 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Ka4 loss in 1 half-moves
13 Ka6 loss in 1 half-moves
14 Kb4 loss in 1 half-moves
15 Kb5 loss in 1 half-moves
16 Kb6 loss in 1 half-moves
17 Re8 loss in 1 half-moves
18 Rf6 loss in 1 half-moves
19 Rg8 loss in 1 half-moves
20 Rh8 loss in 1 half-moves