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

EGTB: loss in 37 half-moves

# move score
1 Kb6 loss in 36 half-moves
2 Kb7 loss in 34 half-moves
3 Ka6 loss in 28 half-moves
4 Kb8 loss in 24 half-moves
5 Ka8 loss in 16 half-moves