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

EGTB: win in 2 half-moves

# move score
1 Ra6 win in 1 half-moves
2 Ka7 draw
3 Ra1 draw
4 Ra2 draw
5 Ra3 draw
6 Ra4 draw
7 Rc5 draw
8 Rg5 draw
9 Rh5 draw
10 Kb7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rd5 loss in 2 half-moves
15 Re5 loss in 2 half-moves
16 Rf5 loss in 2 half-moves