Logic Masters Deutschland e.V.

---- RULES ----

Normal Sudoku rules apply: Fill the grid with digits 1 to 9 appearing once each in every row, column, and 3x3 box.

Mid Loop: Draw a single 1-cell-wide loop of orthogonally connected cells into the grid that enters no cell more than once. The loop must pass through all dots. All dots must be in the middle of a straight loop segment, i.e., the distance from a dot to the next turn along the loop must be identical in both directions. The loop acts as an Entropic Line. Any group of three consecutive cells along the loop must contain one low digit (1,2,3), one middle digit (4,5,6), and one high digit (7,8,9).

Kropki Dots: Cells connected by a white dot contain consecutive digits. Digits in cells connected by a black dot are in a 1:2 ratio.

---- LINKS ----

Solve this puzzle using SudokuPad

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This Sudoku is part of my series of "build-your-own-loop Sudokus". If you liked solving this puzzle or if you prefer other combinations of loop logic and constraints, feel free to give the other sudokus of the series a go too:

	Loop Logic	Loop Constraint	Further Constraints
Whispering-Zipper- Loop	Counting Cells	Dutch Whispers	Zipper Lines X-clues
Super Bowl Loop	Oponents, out-of-bounce	Polarity Line	Kropkis, XV, Nabner, Zipper
Linesweeper Loop	Linesweeper clues	Parity Line	Little Killers
Modular-Zipper- Loop	Counting Cells	Modular Line	Zipper Lines X-clues
Balance Loop	Balance clues	Parity Line	Little Killers
Entropic-Zipper- Loop	Counting Cells	Entropic Line	Zipper Lines X-clues
Hiking-through- the-Fog Loop	Signposts	Dutch Whisper, Polarity Line	Kropki Dots X-clues
Renbanimo Loop	Pentominos Guiding Cells	Renbanimos	Kropki Dots Odd cells
Deceiving Loop	Wrogn Clues	Wrogn Clues	9 different constraints
Count-the- Whispers Loop	Counting Cells	German Whispers	Kropki Dot
Whisper-me- Sum-thing Loop	Line-sums	German Whispers	Kropki Dots
Road Running Loop	Road Runner	Parity Line	Kropki Dots
Magically Modifying Loop	-	Incrementers, Decrementers, Nullifiers	Magic Squares, Killer cages, Kropki Dots
Skiing Loop	Gates	German Whispers	Kropki Dot, Between Lines
Behaving Loop	3x3 boxes	Polarity Line	Kropki Dots
Magical Loop	Guiding cells	Modular Line	Magic Squares
Foggy Loop	Guiding cells	Parity Line	Fog of War, Killer Cages
10-Suȵ Loop	Moon-or-Sun	10-Line	Killer Cages
Counting Loop	Galaxies	Counting Line	Killer Cages, Kropki Dots, Quadruple Clues
Shining Loop	Moon-or-Sun	Parity Line	Killer Cages
Interfering Loops	Slitherlink + Masyu	Entropic Line + Parity Line	Killer Cages
Slithering Loop	Slitherlink	Entropic Line	Killer Cages, Little Killer
BigBang Loop	Galaxies	Parity Line	Row/Column Indexer, Kropki Dots
Summing Loop	Star Battle	Region Sum Line	Killer Cages, Skyscraper, Kropki Dots
Whispering Loop	Star Battle	German Whispers	Sandwich Sum