It's Me Again
(Published on 4. February 2025, 05:00 by oskode)
This puzzle uses the same ruleset as my puzzle Self Centered but with the difficulty and grid size increased. I recommend checking out the 6x6 version first!
Rules:
- Sudoku: Fill all empty cells with a digit from 1-9 such that all rows, columns and marked 3x3 regions contain no repeated digits.
- Diagonal stars: A digit in a star indicates how many copies of itself it sees diagonally (eg. if a star contains a 1, then one other 1 must be seen diagonally from that star; if the digit is a 2, then two other 2s must be seen etc.).
- Empty Cells: All stars are given. This means that a cell without a star may not satisfy the 'Diagonal Stars' rule (eg. an empty cell containing a 3 may not see three copies of itself diagonally).
- Every star contains a different digit
Click here to play online!
Ratings and comments are very much appreciated. Thank you for playing!
Solution code: Digits in column 1, from top to bottom
Comments
on 5. February 2025, 17:06 by Calvinball
Very nice! The use of the negative constraint I found to be both subtle and intuitive.
on 4. February 2025, 17:12 by geronimo92
A 2 star puzzle really.... never underrating but after solving the 6x6 one that is quite easy
on 4. February 2025, 11:59 by anyeyeball
Very nice, fun puzzle. I found it fairly easy to get a start thanks to the "every star contains a different digit" rule, but harder to wrap up. An enjoyable challenge.
on 4. February 2025, 08:50 by MSDOS
Nice step up from the 6x6! The break in logic was nice. Took a bit to find the digit to look at to wrap it up. Overall, quite smooth. Thanks!
on 4. February 2025, 06:37 by oskode
updated image formatting
