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

EGTB: loss in 3 half-moves

# move score
1 Ka3 loss in 2 half-moves
2 Ka7 loss in 2 half-moves
3 Kb3 loss in 2 half-moves
4 Kb4 loss in 2 half-moves
5 Kb7 loss in 2 half-moves
6 b5 loss in 1 half-moves
7 K4a5 loss in 1 half-moves
8 K4b5 loss in 1 half-moves
9 K6a5 loss in 1 half-moves
10 K6b5 loss in 1 half-moves