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This puzzle is another that I created for the November 2020 monthly puzzle prompt in the CtC fan discord server.

Sudoku with Red, Yellow and Blue

• Each row and column contains the digits 1-9.
• Digits may not repeat within the outlined regions.
• Digits may not repeat in cells of the same colour (red, yellow, blue, black).
• Digits outside the grid in black are sandwich clues. The value is the sum of all digits in that row / column between the 1 & 9.
• Digits outside the grid in red are colour sums. The value is the sum of all coloured cells (i.e. non-white) in that row / column.

Use one of the following links to play online:

If you are a member of the CtC discord you can rate the puzzle here

Play some of my sudoku variant puzzles here. I have had a passing interest in sudoku and killer sudoku puzzles for some time. During the Coronavirus lockdown I discovered the Cracking The Cryptic YouTube channel. This opened up to me a whole new world of sudoku variant puzzle types that I had been completely unaware of.

This puzzle was made for the November 2020 monthly puzzle prompt in the CtC fan discord server which was on the theme of modern art.

Sandwich Sudoku

I had made a few puzzles combination sandwich sudoku with crypto clues and other rules. So I decided it would be a good idea to make a few more straightforward sandwich sudoku puzzles. This was my first.

Ambiguous Kropki Sudoku

This is a variation on kropki sudoku. Usually black and white dots are used to indicate cels that have a 2:1 ratio or a difference of 1. In this puzzle all the dots have been replaced with smiley faces, so you need to work out which are which.

La Persistencia del Sudoku

This is the second puzzle I created for the November 2020 monthly puzzle prompt in the CtC fan discord server.