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

EGTB: loss in 21 half-moves

# move score
1 Kb5 loss in 20 half-moves
2 Kb7 loss in 20 half-moves
3 Kb6 loss in 18 half-moves
4 Kc7 loss in 18 half-moves
5 Kd7 loss in 18 half-moves
6 Kc5 loss in 2 half-moves
7 Kd5 loss in 2 half-moves
8 Kd6 loss in 2 half-moves