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

EGTB: loss in 35 half-moves

# move score
1 K7b7 loss in 34 half-moves
2 K6b6 loss in 20 half-moves
3 K6b7 loss in 20 half-moves
4 Kb8 loss in 20 half-moves
5 Ka5 loss in 10 half-moves
6 Ka8 loss in 10 half-moves
7 K7b6 loss in 6 half-moves
8 Kb5 loss in 2 half-moves