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

EGTB: loss in 23 half-moves

# move score
1 Kb4 loss in 22 half-moves
2 Kc6 loss in 22 half-moves
3 Kc4 loss in 20 half-moves
4 Kb5 loss in 18 half-moves
5 Kb6 loss in 16 half-moves
6 Kd4 loss in 2 half-moves
7 Kd5 loss in 2 half-moves
8 Kd6 loss in 2 half-moves