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 Ka3 win in 5 half-moves
3 Kb3 win in 5 half-moves
4 Kb5 win in 5 half-moves
5 Ka5 draw
6 Nc7 draw
7 Nd6 draw
8 Nf6 draw
9 Ng7 loss in 12 half-moves