Intro | Rules | Links | Extras | Deutsch |
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Don't be put off. Specific rules for each puzzle are listed below, but normal Sudoku rules apply to all of them. There is a single clear solution and when you have the puzzle all wrapped up, there is a surprise hidden within for you to enjoy.

Kropki/dots/Letters on edges between two cells indicate the relationship between the values in those cells:

- black dot = ratio is the number in the dot (2 by default)
- white dot = difference is the number in the dot (1 by default)
- X = sum is 10
- V = sum is 5

It may not be assumed that all possible Kropki, X, or V have been given.

Digits in blue cells and arrow pills are read left-to-right or top-to-bottom.

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Japanese Sum Sudoku: Numbers in blue shaded cells give the sum of contiguous shaded cells within the outlined area. Two blue cells together is a 2-digit number. Rows and columns without a clue may or may not have shaded cells.

Need help with Japanese Sums? Try out some of these links to videos:

CTC: Nonograms with Maths

CTC: Solve the Sudoku to Draw a Picture

Or if you would like to see a puzzle more similar to this one check out:

BremSter: Sudoku on the streets

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- Digits on an arrow line sum to the number in the pill.
- Each Renban line overlapping the arrow line contains the non-repeating digits of a consecutive sequence, but in any order.

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Weak Palindromes: Cells that are an equal distance along the line from its midpoint, contain pairs of digits that are either both odd or both even, and that are either both high (5 or more) or both low (less than 5).

Need some help with weak palindromes? Check out this video:

Mornington Crescent

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Cube construction: Identify the three 3x3 Sudoku boxes, who can be stacked on top of each other without rotation and form a 3x3x3 cube. When viewed from each side of the three directions, each of of the three layers of the cube must contain a full set of the digits 1-9. The three selected boxes must not share the same row or columns of the Sudoku grid (they must not 'see' each other).

Need help? Check out this link for an introduction to the idea:

LMD: The Cube

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- Divide the whole grid into Killer cages.
- Each killer cage is rectangular, but the clue giving the cage's total is not necessarily in the top left cell of the cage.
- Cages containing the same number of cells may not touch each other at an edge or at a corner.
- White dots are strictly between cells in different cages.
- Black dots are strictly between cells in the same cage.

Need help with this type of puzzle? Check this out:

CTC: The Gift You Can Just Keep Giving

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Nothing special in particular about this puzzle.

https://kitiara.has.coffee/Faces-PuzzleOnly-PE

All 6 puzzles together in penpa (with answer check):

Note: The all-in-one grid is too large to open via URL directly. In order to load the full grid with answer-check in penpa, you need to:

- Click on the link first to open a blank penpa-edit page: Penpa
- Next, highlight everything in the textbox below by clicking on it then hitting control A then Control C.

Or highlight the text in the box below (be sure to get it all) and then hit "copy" in the browser.

If that doesn't work, then: In a separate tab or window, visit https://kitiara.has.coffee/Faces-PuzzleFull-PE and when that fails, click the address bar then use Control A and Control C - At the top of the penpa-edit page, find the "Load" button towards the right side and press it.
- Paste (Control V) the text you copied earlier into the box that appears, then click "Load URL"
- Start solving!

A Plain Face, Faceted Gem, A Facade, A Plane Face, A Face to Die For, Roman Profile

- "A wonderful set of approachable to moderately difficult puzzles with a difficult, but interesting tie together at the end." - Memeristor
- "I fell in love with the face, but our relationship ended up platonic." - Jeremydover

Send a PM to Panthera with proof of your solve to get listed below!

- Jlrice2
- JeremyDover
- JayForty
- Purpl
- Don_Jonny_Cash
- jkuo7