Logic Masters Deutschland e.V.

This is a collaboration, jointly set by myself and palpot.

Normal Sudoku rules apply.
Place the digits 1-9 so that they do not repeat in any row, column, or 3x3 box.

5s live in Dutch Flats
All 5s in the grid must have a '1' directly above it or a '9' directly below it. It may have both, but it doesn't need both.

Entropic Snake
- Draw a one-cell-wide snake of orthogonally connected cells.
- The snake can't touch itself, not even diagonally.
- Circles are on the snake.
- Squares are not on the snake.
- A digit in a circle/square counts how many cells of the same type (snake/non-snake) it sees in the row and column, including itself. The other type blocks vision.
- Every three cell sequence on the snake contains a low digit {1,2,3}, a middle digit {4,5,6} and a high digit {7,8,9}.

Special Thanks
This puzzle was set for Scojo's weekly prompt, which was a twitch channel points redeem from black_doom with the only requirement being collaboration!
Thanks again to Palpot for co-setting this puzzle.
The circles/squares idea was borrowed from many gdc loop puzzles.
But please note that today's puzzle is a snake, not a loop!
We made that mistake a few times in the early setting, as we weren't sure which to use - lol.

To play this puzzle please click here: Play CTC

Previous puzzles in the Dutch Flat Mates series:

• Classic
• Thermometers
• German Whispers
• Region Sum Lines
• Sandwich Sums
• Little Killer
• Kropki
• Zipper Lines
• Renban - By GoodCity
• Nabner - By GoodCity
• Skyscrapers - By GoodCity
• Dutch Whispers
• Killer Cages
• Arrows
• Ten Lines
• 159 Index and Even - By GoodCity
• Friendly Cells
• Quads
• Silent Killer - By GoodCity
• XV and Equality
• X-Sums
• Numbered Rooms - By GoodCity
• Diagonal X-Sums
• Yin Yang (Neighborhoods) - By Palpot
• Hit Points
• XY Difference - By GoodCity
• Double Sandwich Sums
• Foggy Knights
• Look and Say Little Killer
• Slingshot - By GoodCity
• 258 Index and Odd
• Rellik
• Search 9 - By Palpot
• Diagonal Outside

Hint to Start

The digit in R1C1 is forced whichever way it chooses to connect. This gives enough entropy information get a good grip on the top of your snake.

This Weeks Puzzle