Normal Sudoku Rules apply. Every row, column and marked region in the puzzle must contain the digits 1-9 at least once.
Additional Rules:
Global Entropy: Group the digits 1-9 into low(123), middle(456), and high(789) digits. Every 2x2 cell group in the puzzle must contain at least one digit of each group EXCEPT for the 2x2 around the quadruple clue.
Quadruple: Digits within the small circles must appear in at least one of its surrounding cells.
Thermo: Digits on thermos rise from the bulb end.
Solution code: column 5
on 29. June 2023, 17:31 by jdjdjd
Touhou Project 12
东方星莲船
on 5. June 2023, 11:05 by Tamuha
Nice Puzzle, thank you. It took me a while to realise, that the rules contain a negative constraint arround the Quadruple. After that it went smooth.
on 30. May 2023, 21:36 by AParliamentofOwls
@Bankey Thank you and you're welcome :)
on 29. May 2023, 15:11 by Bankey
Fun puzzle. Thanks, @ AParliamentofOwls :)
on 29. May 2023, 02:52 by AParliamentofOwls
Changed difficulty from easy to average