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

EGTB: win in 4 half-moves

# move score
1 K1b1 win in 3 half-moves
2 K2b1 win in 3 half-moves
3 Ka3 draw
4 K1b2 loss in 2 half-moves
5 K2b2 loss in 2 half-moves
6 Kb3 loss in 2 half-moves