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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Kc4 draw
3 Kd4 draw
4 Ra1 draw
5 Ra3 draw
6 Ra5 draw
7 Ra6 draw
8 Ra7 draw
9 Ra8 draw
10 Rg4 draw
11 Rh4 draw
12 Kc2 loss in 2 half-moves
13 Kc3 loss in 2 half-moves
14 Kd2 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Ke4 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Re4 loss in 2 half-moves