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

EGTB: loss in 51 half-moves

# move score
1 Kb5 loss in 50 half-moves
2 Ka5 loss in 48 half-moves
3 Kb6 loss in 42 half-moves
4 Ka7 loss in 40 half-moves
5 Kb7 loss in 40 half-moves