Logic Masters Deutschland e.V.

Play on SudokuPad!

Normal sudoku rules apply.

Parity Pivot Loop: Form a one-cell-wide loop that moves through the grid orthogonally. The loop does not touch itself, not even diagonally. A loop cell is an odd digit if the loop moves straight through it, and is an even digit if the loop does a 90 degree turn at its location.

Loop Renban Lines: There is exactly one loop cell on each pink line. A pink line contains a consecutive set of digits in any order, without repeats.

Loop Descension Arrows: Digits along an arrow sum to the digit in the circled cell, and they must descend away from the circle (digits cannot repeat). The digit on an arrow's pointer indicates how many loop cells are in the direction of the arrow, not counting the arrow cell.

Loop Dots: Cells separated by a black or white dot are either both loop cells, or neither are loop cells. Digits separated by a black dot have a 1:2 ratio. Digits separated by a white dot are consecutive.



Example of a valid loop shape (the white cells inside the loop cannot be cut off from each other, and a 2x2 block of cells cannot all be loop cells):



(Puzzles throughout this series use the same loop rules, and visually identical elements have the same meaning).