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

EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Rg6 win in 3 half-moves
3 Rh6 win in 3 half-moves
4 Ra1 draw
5 Ra3 draw
6 Ra5 draw
7 Rc6 draw
8 Kf7 loss in 2 half-moves
9 Kf8 loss in 2 half-moves
10 Kg7 loss in 2 half-moves
11 Kh7 loss in 2 half-moves
12 Kh8 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Re6 loss in 2 half-moves