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 Kf6 draw
3 Kf8 draw
4 Kg6 draw
5 Kg7 draw
6 Kg8 draw
7 Re3 draw
8 Rf1 draw
9 Rf2 draw
10 Rf5 draw
11 Rg3 draw
12 Rh3 loss in 12 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Ke8 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rd3 loss in 1 half-moves