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

EGTB: loss in 21 half-moves

# move score
1 Kb6 loss in 20 half-moves
2 Kb5 loss in 16 half-moves
3 Kb7 loss in 12 half-moves
4 Nb6 loss in 12 half-moves
5 Ka7 loss in 10 half-moves
6 Nc7 loss in 10 half-moves
7 Ka5 loss in 6 half-moves