Logic Masters Deutschland e.V.

"Ah-ah-ah! Welcome, Sudoku cracker, to my latest cerebral masterpiece.

Normal Sudoku rules apply: place the digits 1–9 so that every row, column and 3×3 box contains each digit once.

A black dot between two cells means one digit is double the other.

A white dot means the digits are consecutive.

Now for the pièce de résistance: orthogonally adjacent digits may never both be even… how deliciously restrictive!

And the central 3×3 box is a magic square — its rows, columns and both main diagonals all sum to the same mysterious number. A true tour de force!

Along each green line, adjacent digits must differ by at least 5.

(The grey drawings are purely decorative. I’m an artist, you know.)

So tell me… will you deliver the coup de grâce to my crafted enigma?"