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

EGTB: win in 4 half-moves

# move score
1 Kab2 win in 3 half-moves
2 Kb3 win in 5 half-moves
3 Ka3 win in 9 half-moves
4 Kc1 draw
5 Kbb2 loss in 2 half-moves
6 Kc2 loss in 2 half-moves