Logic Masters Deutschland e.V.

Normal 6x6 Sudoku: Place the digits 1-6 exactly once in every row, column, and 2x3 box.

Masyu Puzzle: Draw lines between the circles to form a single loop without crossings or branches. The loop should pass through all gray and white circles in such a way that:
- White circles must be passed through in a straight line, but the loop must turn in the previous and/or the next cell.
- Gray circles must be turned upon and the loop must travel straight through the next and the previous cell.
More details about Masyu puzzles in this here tutorial.

Odd Circle: The digit in the grey shaded circle is odd.

Kropki Dots: Digits separated by a black dot have a 1:2 ratio, meaning one is exactly double the other. Not all dots are necessarily given.

Color in green the Masyu loop line segments in boxes 1, 3, 4, 5, and 6 that extend across more than one cell. Green lines do no cross box borders.

German Whispers Lines: Green lines in the grid are German Whispers lines. Adjacent digits along the line must have a difference of at least 3.

Use the Pen Tool available in Sudokupad to draw the Masyu lines. Solve online at this SudokuPad link.

Check my other puzzles here.