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 Kf1 draw
3 Kf3 draw
4 Kg2 draw
5 Kg3 draw
6 Ra6 draw
7 Re6 draw
8 Rf5 draw
9 Rg6 draw
10 Rh6 draw
11 Kg1 loss in 10 half-moves
12 Ke1 loss in 2 half-moves
13 Ke2 loss in 2 half-moves
14 Ke3 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rd6 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rf8 loss in 2 half-moves