It's my wrogn!
(Published on 27. September 2025, 21:26 by 72kchunshuai)
I made this one when I was very new to sudoku.I stumbled upon it yesterday and found that it's a tough fight for even me! So I thought, I can't be the only one tormented by this puzzle.I'm so sorry for the long rules,and your feedback is very appreciated.
P.S. As for the title—according to a friend, it comes from the anime It's MyGo!!!!!, though I didn't mean it.
Rules:
- Normal Sudoku rules apply.
- However, in the end grid, every clue is wrogn (invalid)! A clue is valid if:
- Thermometers: Digits strictly increase from the bulb end of a thermo.
- Kropkis: Digits along a white dot are consecutive.Digits along a black dot are in a ratio of 1:2.
- XVs: Digits along an 'X' sum to ten.Digits along a 'V' sum to five.
- Odd-Even: Digit in a grey circle is odd.Digit in a grey square is even.
- Quadruples: All digits inside a quadruple clue are found in the surrounding four cells.
- Minimum: Minimum cells are smaller than all four adjacent cells
- Killer cages: Digits in a cage sum to the given number on the top left.
- Little killers: A clue outside the grid with an arrow equals to the sum of the digits along the indicated diagonal.
- Numbers on the outside without an arrow are valid Numbered Rooms or Skyscraper clues:
- Skyscraper: Treat every digit in the grid as buildings of that height. Clues represent the number of visible skyscrapers from that direction. Taller buildings obscure vision of shorter buildings.
- Numbered Rooms: Clues outside the grid indicate the digit which has to be placed in the Nth cell in the corresponding direction, where N is the digit placed in the first cell in that direction.
- German whisper lines: Along green lines, all pairs of adjacent digits differ by at least five.
- Renban: Digits on a purple line form a non-repeating set of consecutive digits, in any order.
- Nabner: No two digits on a yellow line are equal or consecutive.
- Ten lines: Digits on a red line can be broken into one or more contiguous groups of cells that each sum to ten.
Solution code: Nine digits in row 5,from left to right
Comments
yesterday, 21:31 by cyddrdrd
Nice construction! As I am not that good at observation, I would say 4 stars difficulty is quite fair.
on 30. September 2025, 01:28 by 72kchunshuai
Rules clarified. Thanks to @Marshal on Mars.
on 29. September 2025, 22:48 by Marshal on Mars
Very enjoyable. I have one suggestion but I'll put it in a separate hidden comment to avoid giving what might be an unwanted hint to some puzzlers.
on 29. September 2025, 18:28 by SashaBu
I quite enjoyed this. I felt 3* was right because each deduction was never too complex. Despite the "low" difficulty, it kept me occupied for quite some time between the sheer quantity of clues, the usual mind-warp of wrogn clues, and the unusual break-in.
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Thanks for commenting. I actually guess most people will think it's a 4*, but I agree it's not that difficult to make the deductions, compared to those real 4* challenges.
on 29. September 2025, 17:47 by rameshsrivats
Spectacular puzzle. No idea how you could even set something so cool. At every moment, there was one clue that made a difference. I do think it is a 4* difficulty though.
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Thank you for saying that! I actually can't recall the exact details. I guess it was passion that swirled a little magic into it.
