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

EGTB: loss in 7 half-moves

# move score
1 Kb7 loss in 6 half-moves
2 Nb4 loss in 6 half-moves
3 Kb8 loss in 4 half-moves
4 Ka6 loss in 2 half-moves
5 Ka8 loss in 2 half-moves
6 Kb6 loss in 2 half-moves
7 Nc3 loss in 2 half-moves
8 Nc1 loss in 1 half-moves