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 Ra6 draw
3 Rb6 draw
4 Rc6 draw
5 Rd6 draw
6 Re6 draw
7 Rf1 draw
8 Rf2 draw
9 Kf7 loss in 2 half-moves
10 Kf8 loss in 2 half-moves
11 Kg6 loss in 2 half-moves
12 Kg8 loss in 2 half-moves
13 Kh6 loss in 2 half-moves
14 Kh7 loss in 2 half-moves
15 Kh8 loss in 2 half-moves
16 Rf3 loss in 2 half-moves
17 Rf5 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rh6 loss in 2 half-moves