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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Kb5 win in 5 half-moves
4 Ka6 draw
5 Ka4 loss in 4 half-moves