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

EGTB: win in 2 half-moves

# move score
1 Ke7 win in 1 half-moves
2 Ra5 win in 1 half-moves
3 Rb8 win in 1 half-moves
4 Ra1 loss in 4 half-moves
5 Ra2 loss in 4 half-moves
6 Ra3 loss in 4 half-moves
7 Ra4 loss in 4 half-moves
8 Kc7 loss in 2 half-moves
9 Kc8 loss in 2 half-moves
10 Kd7 loss in 2 half-moves
11 Ra6 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Ke8 loss in 1 half-moves