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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 Ka1 draw
3 Kb2 draw
4 Kc1 draw
5 Ra1 draw
6 Ra3 draw
7 Ra5 draw
8 Ra6 draw
9 Ra7 draw
10 Rb2 draw
11 Rc2 draw
12 Rd2 draw
13 Rf2 loss in 6 half-moves
14 Kc2 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Re2 loss in 2 half-moves
17 Rg2 loss in 1 half-moves
18 Rh2 loss in 1 half-moves