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

EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Rf8 win in 3 half-moves
3 Kc6 draw
4 Kc7 draw
5 Kc8 draw
6 Kd6 draw
7 Kd8 draw
8 Ke6 draw
9 Ke7 draw
10 Ke8 draw
11 Kg6 draw
12 Kg7 draw
13 Kg8 draw
14 Kh6 draw
15 Kh8 draw
16 Ra3 draw
17 Re3 draw
18 Rf4 draw
19 Rf5 draw
20 Rf7 draw
21 Rg3 draw
22 Rh3 draw
23 Rb3 loss in 2 half-moves
24 Rc3 loss in 2 half-moves
25 Rd3 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rf2 loss in 2 half-moves