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

EGTB: loss in 7 half-moves

# move score
1 Kb2 loss in 6 half-moves
2 Kd2 loss in 6 half-moves
3 Kb1 loss in 4 half-moves
4 Kc2 loss in 4 half-moves
5 Kd1 loss in 4 half-moves
6 Nb3 loss in 2 half-moves
7 Nc2 loss in 2 half-moves