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 Kb5 win in 3 half-moves
3 Ka6 draw
4 Kb6 draw
5 Nc7 draw
6 Nb6 loss in 24 half-moves
7 Ka4 loss in 4 half-moves