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

EGTB: win in 10 half-moves

# move score
1 Kb6 win in 9 half-moves
2 Kb7 win in 11 half-moves
3 Kb8 win in 13 half-moves
4 Ka2 draw
5 Ka6 draw
6 Ka8 draw
7 Kb2 draw
8 Kc1 draw
9 Kc2 draw
10 Ra2 draw
11 Ra3 draw
12 Ra4 draw
13 Ra5 draw
14 Ra6 loss in 2 half-moves