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

EGTB: loss in 23 half-moves

# move score
1 Kb5 loss in 22 half-moves
2 Kc5 loss in 22 half-moves
3 Kc6 loss in 22 half-moves
4 Kc7 loss in 22 half-moves
5 Ka7 loss in 20 half-moves
6 Kb7 loss in 20 half-moves
7 Ka6 loss in 16 half-moves
8 Ka5 loss in 12 half-moves