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 Kbb2 win in 3 half-moves
3 Kc2 win in 3 half-moves
4 Kab2 loss in 2 half-moves
5 Kc1 loss in 2 half-moves
6 Ka3 loss in 1 half-moves