The Sudoku puzzle format consists of (usually) a 9 by 9 grid that must be filled with numbers. The classical Sudoku rules are as follows

  1. Each row must contain all of the digits from 1 to 9, with no repetitions
  2. Each column must contain all of the digits from 1 to 9, with no repetitions
  3. Each sub square (3x3 grids marked by bold lines) must contain all of the digits from 1 to 9, with no repetitions

The historical inspiration of Sudoku begins with the Latin square, a type of grid problem similar to Sudoku in that it consists of an N by N grid where N digits (or letters) must be arranged in accordance with rules 1 and 2 of Sudoku (the sub square had yet to be invented). The first known example of a 9 by 9 Latin Square is from a monograph over 300 years ago, written by the Korean mathematician Choi Seok-Jeong. However, the Latin Square was popularized in the west by the legendary mathematician Leonhard Euler, who independently invented it almost 70 years after Choi Seok-Jeong.

According to Christian Boyer (idk who this is), on July 6th, 1895, the french newspaper La France published the earliest known example of a “true” Sudoku puzzle following all 3 rules of modern Sudokus, although french newspapers had previously been publishing similar (but different) puzzles prior. The name “Sudoku” itself (meaning “single digit”) comes from Japanese magazines in which the game was popular during the 80s and 90s.

In Modern times, the Sudoku puzzle scene has been blessed with the addition of numerous variants, that add on additional rules, elevating the puzzle. The puzzle in the provided image is one such example, known as the “miracle Sudoku”. It comes with 3 additional rules on top of the 3 original.

  1. If 2 digits are separated by a knight’s move in chess, then they cannot be the same
  2. If 2 digits are separated by a king’s move in chess, then they cannot be the same
  3. If 2 digits are adjacent (left, right, down or top, none of the diagonal directions), then they cannot be consecutive (ex - 5 and 6, or 7 and 8)

As can be seen from the fact that only 2 digits have been provided to start with, modern Sudoku authors are big fans of making puzzles that appear to be impossible to solve. This of course, is my favorite part about modern Sudoku. If you want to try to solve the miracle Sudoku, here is the link.

Some of the other example variants add new rules, such as German whispers, Dutch whispers, Renban lines, Entropy lines, Thermometer lines, killer cages and many more. You can find a massive collection of these puzzles on the logic-masters website.

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    • 0x2640 [pup/pup's, she/her]@hexbear.netEnglish
      5·
      1 day ago

      calling using archinstall “cheating” is elitist as fuck

      theres basically zero reason to manually install unless you want to go through the time consuming process of doing so or for a learning experience

      and copying and pasting things from a wiki page isnt really an accomplishment x3

      (and for the record we have installed arch manually, and we wont do it again, because archinstall exists)

      ((not that we would install arch again because we use nixos now (which we also have installed manually, and will do again because swap is broken on the graphical installer :p)))

      • hello_hello [comrade/them]@hexbear.net
        5·
        1 day ago

        I agree with this completely. I just used the word cheating as if installing arch was a game and you can “beat” it by entering a cheat code at the start.

        My first time using arch was not having archinstall and there was this whole dynamic of arch derivatives whose main reason for existing was not having to manually install. Now that’s past (very much for the better)

        Going through the manual installation is really important because it does teach you about using the arch wiki and making sure you’re comfortable with the command line. But its more a educational exercise than anything (maybe an orientation because it doesn’t get any easier from there).

    • segfault11 [any]@hexbear.netEnglish
      6·
      1 day ago

      thanks lol. it helps that I’ve used linux on and off in various ways over the past… let’s just say over a decade 😅, so when I read “partition table”, I already know what that is, why there’s two different types and how they differ, and why you might need multiple partitions, I’ve just never made one from scratch with a command line tool before.

      I’ll admit that while I quickly got from the screenshot I posted to a desktop with a browser I can post from, I haven’t got sound working oh-shit so if you know of a good source to get that working, I’d appreciate it (my speakers are connected to my monitor, which might be why it’s not working as I’m expecting?)