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

EGTB: win in 2 half-moves

# move score
1 Kb4 win in 1 half-moves
2 Kb5 win in 1 half-moves
3 Ka4 draw
4 Kb6 loss in 62 half-moves
5 Ka6 loss in 58 half-moves