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

EGTB: win in 4 half-moves

# move score
1 Kg8 win in 3 half-moves
2 Kh6 loss in 12 half-moves
3 Kh8 loss in 4 half-moves
4 Kg6 loss in 2 half-moves
5 Kg7 loss in 2 half-moves