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

EGTB: win in 2 half-moves

# move score
1 Kc7 win in 1 half-moves
2 Ka6 win in 3 half-moves
3 Kb7 win in 3 half-moves
4 Kb8 win in 3 half-moves
5 Kd7 win in 3 half-moves
6 Rb8 win in 3 half-moves
7 Kb6 draw
8 Rc8 draw
9 Ke7 loss in 2 half-moves
10 Ke8 loss in 2 half-moves
11 Kc8 loss in 1 half-moves