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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Re5 win in 3 half-moves
3 Rg5 win in 3 half-moves
4 Rh5 win in 3 half-moves
5 Kc7 draw
6 Kc8 draw
7 Kd7 draw
8 Ke8 draw
9 Kg8 draw
10 Kh7 draw
11 Ra4 draw
12 Ra6 draw
13 Ra8 draw
14 Rf5 draw
15 Ke7 loss in 2 half-moves
16 Kg7 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rc5 loss in 2 half-moves
22 Rd5 loss in 2 half-moves