If you can use a classic sudoku trick related to symmetry, then you will get a sudoku with a difficulty of 2 stars. And if not, then you will get an even more interesting sudoku with a difficulty of 4 stars. Dear experts, write in the comments whether it is correct to use this trick in sudoku with entropy.
Solution code: Row 1
on 19. October 2024, 10:20 by juggler
Neat!
on 18. October 2024, 22:15 by Donald X.
I have no idea what the classic symmetry trick is. I enjoyed the puzzle anyway.
on 18. October 2024, 17:02 by h5663454
...(≖_≖ )
on 18. October 2024, 16:22 by Shuhua Milk
Nice!
on 18. October 2024, 15:04 by Gluckman
Never knew about symmetry theorem. It's very helpful here.