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

EGTB: loss in 9 half-moves

# move score
1 Kb2 loss in 8 half-moves
2 Kb3 loss in 8 half-moves
3 Kb4 loss in 8 half-moves
4 Ka2 loss in 6 half-moves
5 Ka4 loss in 4 half-moves
6 Nb3 loss in 2 half-moves
7 Nc2 loss in 2 half-moves