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 Ka2 draw
3 Kb1 draw
4 Kb2 draw
5 Ra2 draw
6 Ra3 draw
7 Ra4 draw
8 Rb6 draw
9 Rc6 draw
10 Ra7 loss in 12 half-moves
11 Re6 loss in 12 half-moves
12 Rg6 loss in 6 half-moves
13 Ra5 loss in 2 half-moves
14 Rf6 loss in 2 half-moves
15 Rd6 loss in 1 half-moves
16 Rh6 loss in 1 half-moves