Logic Masters Deutschland e.V.

In celebration of Dot Day 2025, this puzzle is ecstasy.

Rules:

Normal sudoku rules apply.

The face, nose, mouth and frame edges are entropic lines. Every set of three adjacent digits along the line must have a low digit (123), a medium digit (456) and a high digit (789).

The circles for eyes are odd.

The mouth adds to 15, and the bottom cage adds to 9.

The teeth are consecutive dots, meaning they have a difference of 1.

Finally, the top right cell of box 7 is a friendly cell.

Play on SudokuPad.