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 K7d7 draw
3 K7d8 draw
4 K7f7 draw
5 K7f8 draw
6 K8d7 draw
7 K8d8 draw
8 K8f7 draw
9 K8f8 draw
10 Kd6 draw
11 Ke6 draw
12 Kf6 draw
13 Ra3 draw
14 Ra5 draw
15 Ra6 draw
16 Ra7 draw
17 Ra8 draw
18 Re4 draw
19 Rg4 draw
20 Rh4 draw
21 Ra1 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rc4 loss in 2 half-moves
25 Rd4 loss in 2 half-moves