Logic Masters Deutschland e.V.

Rules:

The blue lines with diamonds are Lockout lines. The digits along a line must lie outside the range of the digits in the two diamonds at the end. The diamonds at opposing ends of the line must have a difference of at least four.

The pink line is a Renban line. Digits along the line must form a set of consecutive digits, in any order.

The orange line is a Dutch Whisper line. Adjacent digits along the line must have a difference of at least four.

Digits on an arrow must sum to the digit in the attached circle.

The grey circle is odd.

The white dots separate consecutive digits.

The black dots separate digits in a 1:2 ratio.

The V's separate digits that add to 5.

The X's separate digits that add to 10.

Play it on SudokuPad.