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

EGTB: win in 6 half-moves

# move score
1 Kc7 win in 5 half-moves
2 Kbb7 win in 9 half-moves
3 Kaa7 win in 11 half-moves
4 Kba7 draw
5 Kc8 draw
6 Ra7 draw
7 Ka5 loss in 2 half-moves
8 Kab7 loss in 2 half-moves
9 Kb5 loss in 2 half-moves
10 Kb6 loss in 2 half-moves