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

EGTB: loss in 3 half-moves

# move score
1 Ke8 loss in 2 half-moves
2 Kf7 loss in 2 half-moves
3 Ke7 loss in 1 half-moves
4 Kg7 loss in 1 half-moves
5 Kg8 loss in 1 half-moves
6 Nb6 loss in 1 half-moves
7 Nc7 loss in 1 half-moves