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 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc7 draw
6 Kd6 draw
7 Kd7 draw
8 Kg7 draw
9 Kg8 draw
10 Kh7 draw
11 Ra4 draw
12 Rf5 draw
13 Rf6 draw
14 Rf7 draw
15 Rg4 draw
16 Rh4 draw
17 Kc5 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Re4 loss in 2 half-moves
23 Rf1 loss in 2 half-moves
24 Rf2 loss in 2 half-moves
25 Rf3 loss in 2 half-moves