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 Kg1 draw
3 Kh1 draw
4 Kh2 draw
5 Ra8 draw
6 Rb8 draw
7 Rc8 draw
8 Rf3 draw
9 Rf7 draw
10 Kf1 loss in 2 half-moves
11 Kf2 loss in 2 half-moves
12 Kf3 loss in 2 half-moves
13 Kg3 loss in 2 half-moves
14 Kh3 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rf2 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves