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 Kb1 draw
4 Kb2 draw
5 Ra5 draw
6 Ra6 draw
7 Ra7 draw
8 Rc4 draw
9 Re4 draw
10 Rh4 draw
11 Rd4 loss in 18 half-moves
12 Ka3 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rf4 loss in 1 half-moves
17 Rg4 loss in 1 half-moves