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

EGTB: loss in 23 half-moves

# move score
1 Ka4 loss in 22 half-moves
2 Kb4 loss in 22 half-moves
3 Kb5 loss in 18 half-moves
4 Ka6 loss in 14 half-moves
5 Kb6 loss in 12 half-moves