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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Kd8 draw
3 Kf8 draw
4 Kg8 draw
5 Ra1 draw
6 Ra6 draw
7 Ra7 draw
8 Rb2 draw
9 Rc2 draw
10 Rd2 draw
11 Rh2 draw
12 Kd7 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Kf7 loss in 2 half-moves
15 Kg7 loss in 2 half-moves
16 Kh7 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rg2 loss in 2 half-moves