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

EGTB: loss in 3 half-moves

# move score
1 K5b6 loss in 2 half-moves
2 K6b6 loss in 2 half-moves
3 Ka4 loss in 2 half-moves
4 Ka7 loss in 2 half-moves
5 Kb4 loss in 2 half-moves
6 K5b5 loss in 1 half-moves
7 K6b5 loss in 1 half-moves
8 Kb7 loss in 1 half-moves