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

EGTB: win in 4 half-moves

# move score
1 Rf5 win in 3 half-moves
2 Rf7 win in 3 half-moves
3 Rf8 win in 13 half-moves
4 Kb7 draw
5 Kb8 draw
6 Kc5 draw
7 Kc6 draw
8 Kcc7 draw
9 Kcd7 draw
10 Kd5 draw
11 Kd8 draw
12 Kdc7 draw
13 Kdd7 draw
14 Ke5 draw
15 Ke6 draw
16 Ke7 draw
17 Ra3 draw
18 Re3 draw
19 Rf4 draw
20 Rf6 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