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 Rf1 draw
3 Rf2 draw
4 Rf3 draw
5 Rf5 draw
6 Rf6 draw
7 Rg7 draw
8 Rh7 draw
9 Kb4 loss in 2 half-moves
10 Kb5 loss in 2 half-moves
11 Kb7 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Kd8 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 K5b6 loss in 1 half-moves
23 K5c6 loss in 1 half-moves
24 K5d6 loss in 1 half-moves
25 K7b6 loss in 1 half-moves
26 K7c6 loss in 1 half-moves
27 K7d6 loss in 1 half-moves