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

EGTB: win in 4 half-moves

# move score
1 Ka4 win in 3 half-moves
2 Kb2 loss in 36 half-moves
3 Kb3 loss in 36 half-moves
4 Ka2 loss in 26 half-moves
5 Kb4 loss in 2 half-moves