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

EGTB: loss in 7 half-moves

# move score
1 Kb3 loss in 6 half-moves
2 b3 loss in 4 half-moves
3 Ka3 loss in 4 half-moves
4 Ka8 loss in 3 half-moves
5 Kc8 loss in 3 half-moves
6 Ka5 loss in 2 half-moves
7 Ka7 loss in 2 half-moves
8 Kb5 loss in 2 half-moves
9 Kb7 loss in 2 half-moves
10 Kc7 loss in 2 half-moves