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

EGTB: loss in 23 half-moves

# move score
1 Kc7 loss in 22 half-moves
2 Kc8 loss in 22 half-moves
3 Ka7 loss in 20 half-moves
4 Ka8 loss in 20 half-moves
5 Kb7 loss in 18 half-moves