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 Kb7 draw
4 Kb8 draw
5 Ra4 draw
6 Ra5 draw
7 Ra7 draw
8 Rb3 draw
9 Rf3 draw
10 Rg3 draw
11 Rh3 draw
12 Ra1 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Rc3 loss in 2 half-moves
15 Rd3 loss in 2 half-moves
16 Re3 loss in 2 half-moves