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

EGTB: loss in 51 half-moves

# move score
1 Kc5 loss in 50 half-moves
2 Kd5 loss in 50 half-moves
3 Kb5 loss in 48 half-moves
4 Kd6 loss in 48 half-moves
5 Kd7 loss in 46 half-moves
6 Kb6 loss in 42 half-moves
7 Kc7 loss in 38 half-moves
8 Kb7 loss in 36 half-moves