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

EGTB: loss in 57 half-moves

# move score
1 Kb4 loss in 56 half-moves
2 Kc4 loss in 56 half-moves
3 Kd4 loss in 56 half-moves
4 Kc6 loss in 50 half-moves
5 Kd5 loss in 50 half-moves
6 Kd6 loss in 50 half-moves
7 Kb5 loss in 44 half-moves
8 Kb6 loss in 44 half-moves