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 Rf5 win in 1 half-moves
3 Rf6 win in 1 half-moves
4 Kb7 draw
5 Kc7 draw
6 Kd7 draw
7 Kd8 draw
8 Kg4 draw
9 Kg5 draw
10 Kg6 draw
11 Kh4 draw
12 Kh6 draw
13 Rd8 draw
14 Re8 draw
15 Rf1 draw
16 Rf3 draw
17 Rf7 draw
18 Rg8 draw
19 Rh8 draw
20 Kb8 loss in 1 half-moves
21 Rf2 loss in 1 half-moves