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

EGTB: loss in 53 half-moves

# move score
1 Kb5 loss in 52 half-moves
2 Kb6 loss in 52 half-moves
3 Ka4 loss in 38 half-moves
4 Ka6 loss in 36 half-moves
5 Kb4 loss in 2 half-moves