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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb4 win in 7 half-moves
3 Kb5 win in 7 half-moves
4 Kc8 win in 7 half-moves
5 Rb8 win in 7 half-moves
6 Ka6 win in 13 half-moves
7 Ka4 draw
8 Rc8 draw
9 Kc7 loss in 2 half-moves
10 Kd7 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Ra7 loss in 2 half-moves