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