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

EGTB: win in 2 half-moves

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