I made this yesterday and now it exists. It's actually probably not as bad as i expected.
Mutant Fillomino
Rules: Standard Fillomino rules apply.
Also, the puzzle includes many variants from sudoku: arrows, thermometers, odd/even, XV, kropki dots, killer cages, renban lines (the grey line below the center), differences, x-sums (the normal numbers outside the grid), skyscrapers (numbers in a diamond) and little killer clues. Not all XV and kropki dots are given.
All these behave in the same way they would in a Sudoku puzzle and only refer to numbers in cells, not full regions. Don't forget that you can use numbers higher than 9 in a Fillomino.
Arrows: The sum of the numbers along the path of each arrow must equal the number in the circled cell. Numbers can repeat within an arrow shape.
Thermometer: On a thermometer, numbers must stricly increase from the bulb (round end) to the tip.
Odd/Even: The number in the grey square is even. The number in the grey circle is odd (the bulb of the thermometer is not an odd clue).
XV: Numbers on both sides of an X add up to 10. Numbers on both sides of a V add up to 5.
Kropki: Numbers on both sides of a white dot are consecutive. Numbers on both sides of a black dot have a ratio of 2:1.
Killer cages: The numbers in a killer cage add up to the number in the top left corner of that cage. Numbers cannot repeat inside a cage. A cage may have no given sum.
Renban: The numbers along the grey line make a set of consecutive numbers. However, these doesn't have to be placed in order on the line.
Differences: Clues in a white circle show the difference between the numbers on both sides of it.
X-sums: Normal numbers outside the grid show the sum of the first x numbers in its row/column, where x is the first number in that row/column.
Skyscraper: If we consider cells to be skyscrapers of a height given by the number in them, the clues in diamonds outside the grid show the number of skyscrapers you can see in its row/column from that side. A skyscaper blocks the view of every following skyscrapers that are of the same or lower height.
Little killer clues: Little killer clues show the sum of the numbers on the diagonal it is pointing at. Numbers can repeat if allowed by other rules.
Solution code: Row 2 and row 9
on 14. February 2023, 16:39 by szabog
This has everything nice from the sudoku world except the sudoku (which I try to evade). Thank you!
on 26. August 2022, 02:43 by indolentfool
Wow what a ride! Great setting, nice flow to it once things are spotted!
on 19. July 2022, 19:46 by Vebby
Fantastic puzzle! A lot of lovely logic packed into this one.
on 18. March 2022, 11:23 by Statistica
Sehr hübsch. Danke.
on 20. February 2022, 19:00 by au voleur!
Oh sorry, i assumed almost everyone here would be familiar with common sudoku variants since it's by far the dominant genre that is posted, but it's definitly better to detail everything. I was just a little lazy... Anyways, done!
on 20. February 2022, 17:51 by CJK
Not everyone is as experienced in solving sudokus as you are: Could you please provide full rules for those who aren't? (Especially since this is a non-sudoku puzzle and may be interesting for those who do not like sudokus at all)
on 19. February 2022, 18:12 by au voleur!
Fixed a visual mistake