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

EGTB: loss in 5 half-moves

# move score
1 Ka7 loss in 4 half-moves
2 Ka8 loss in 2 half-moves
3 Kb7 loss in 2 half-moves
4 Kc7 loss in 2 half-moves
5 Kc8 loss in 2 half-moves
6 Nc2 loss in 2 half-moves
7 Nb3 loss in 1 half-moves