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

EGTB: loss in 3 half-moves

# move score
1 K4b4 loss in 2 half-moves
2 K4b5 loss in 2 half-moves
3 K5b4 loss in 2 half-moves
4 K5b5 loss in 2 half-moves
5 Ka3 loss in 2 half-moves
6 Ka6 loss in 2 half-moves
7 Kb6 loss in 2 half-moves
8 Kb3 loss in 1 half-moves