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

EGTB: win in 2 half-moves

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