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

EGTB: loss in 37 half-moves

# move score
1 Kb5 loss in 36 half-moves
2 Kb6 loss in 36 half-moves
3 Ka6 loss in 28 half-moves
4 Kb4 loss in 28 half-moves
5 Ka4 loss in 26 half-moves