Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rf8 win in 3 half-moves
2 Ra3 draw
3 Rb3 draw
4 Rc3 draw
5 Rd3 draw
6 Rf1 draw
7 Rf2 draw
8 Rf6 draw
9 Rf7 draw
10 Kg5 loss in 2 half-moves
11 Kg6 loss in 2 half-moves
12 Kg8 loss in 2 half-moves
13 Kh5 loss in 2 half-moves
14 Re3 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rf5 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 K6g7 loss in 1 half-moves
20 K6h7 loss in 1 half-moves
21 K8g7 loss in 1 half-moves
22 K8h7 loss in 1 half-moves