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

EGTB: win in 6 half-moves

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