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

EGTB: win in 4 half-moves

# move score
1 Rf4 win in 3 half-moves
2 Rf5 win in 3 half-moves
3 Rf6 win in 3 half-moves
4 Rf7 win in 3 half-moves
5 Kf4 draw
6 Kg2 draw
7 Kg4 draw
8 Kg5 draw
9 Kg6 draw
10 Kg7 draw
11 Kh2 draw
12 Kh3 draw
13 Kh4 draw
14 Kh5 draw
15 Kh7 draw
16 Rb8 draw
17 Rf3 draw
18 Rg8 draw
19 Rh8 draw
20 Kf2 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Ra8 loss in 2 half-moves
23 Rc8 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rf2 loss in 2 half-moves