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

EGTB: loss in 21 half-moves

# move score
1 Ka5 loss in 20 half-moves
2 Kb7 loss in 14 half-moves
3 Ka7 loss in 12 half-moves
4 Ka6 loss in 8 half-moves
5 Kb5 loss in 2 half-moves
6 Kc5 loss in 2 half-moves
7 Kc6 loss in 2 half-moves
8 Kc7 loss in 2 half-moves