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

EGTB: loss in 53 half-moves

# move score
1 Kb4 loss in 52 half-moves
2 Kc4 loss in 52 half-moves
3 Kd4 loss in 52 half-moves
4 Kb5 loss in 50 half-moves
5 Kd5 loss in 50 half-moves
6 Kc6 loss in 48 half-moves
7 Kd6 loss in 48 half-moves
8 Kb6 loss in 46 half-moves