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

EGTB: loss in 3 half-moves

# move score
1 Kb7 loss in 2 half-moves
2 Kb8 loss in 2 half-moves
3 Kc7 loss in 2 half-moves
4 Nf2 loss in 2 half-moves
5 Ng3 loss in 2 half-moves
6 Kd7 loss in 1 half-moves
7 Kd8 loss in 1 half-moves