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

EGTB: win in 2 half-moves

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