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

EGTB: loss in 51 half-moves

# move score
1 Kc6 loss in 50 half-moves
2 Kc7 loss in 50 half-moves
3 Kc8 loss in 50 half-moves
4 Kb6 loss in 42 half-moves
5 Kb8 loss in 42 half-moves
6 Ka6 loss in 38 half-moves
7 Ka7 loss in 36 half-moves
8 Ka8 loss in 34 half-moves