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 K6b7 draw
3 K6c7 draw
4 K6d7 draw
5 K8b7 draw
6 K8c7 draw
7 K8d7 draw
8 Kb5 draw
9 Kc5 draw
10 Kd5 draw
11 Kd6 draw
12 Kd8 draw
13 Ra3 draw
14 Rb3 draw
15 Rf4 draw
16 Rf6 draw
17 Rf7 draw
18 Rf8 draw
19 Rg3 draw
20 Rh3 draw
21 Kb6 loss in 2 half-moves
22 Kb8 loss in 2 half-moves
23 Rc3 loss in 2 half-moves
24 Rd3 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rf2 loss in 2 half-moves