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

EGTB: win in 2 half-moves

# move score
1 Ra5 win in 1 half-moves
2 Kc7 draw
3 Kc8 draw
4 Ra1 draw
5 Ra3 draw
6 Ra4 draw
7 Ka7 loss in 2 half-moves
8 Kb7 loss in 2 half-moves
9 Ra2 loss in 2 half-moves
10 Ra6 loss in 2 half-moves
11 Ra7 loss in 2 half-moves