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

EGTB: loss in 53 half-moves

# move score
1 Kb5 loss in 52 half-moves
2 Kc5 loss in 52 half-moves
3 Ka5 loss in 50 half-moves
4 Kc6 loss in 48 half-moves
5 Kb7 loss in 46 half-moves
6 Kc7 loss in 46 half-moves
7 Ka6 loss in 44 half-moves
8 Ka7 loss in 42 half-moves