Rules:
Sudoku: Fill every row, column and 3x3 box with the digits 1-9.
Killer: In cages marked with a dashed line digits must not repeat and have to add up to the total given in the top left corner of the cage.
Entropy: The low digits (1, 2, 3), middle digits (4, 5, 6) and high digits (7, 8, 9) are defined as three different groups. In the finished grid each 2x2 box has to contain at least one digit of each group.
Double Trouble (Entropy Special): If cells of the same group (i.e. {1,2,3}, {4,5,6}, {7,8,9}) are orthogonally adjacent they are Double Trouble cells. If a Double Trouble cell is in a cage it contributes the double value of it's digit to the cage total.
Have fun solving!
Here I've put together a few more of my puzzles that, based on the comments and my personal opinion, are among my best, but haven't gotten that much attention yet:
Double Hidden Inside Squares (killer sudoku with unknown square number cage totals and hidden Double Trouble cells)
Hyperloop (killer sudoku with a hidden loop of Double Trouble cells)
Downtown Dilemma (A special ruleset, that combines hidden Double Trouble cells with skyscrapers.)
Lines of Equality (my first and favorite Equalines puzzle)
The Key (A combination of Double Trouble and Equalines)
Chaotic Sandwiches (entropy sudoku with a modified sandwich ruleset)
X-plosiVe Arrows (standard XV arrow sudoku)
Primetime (prime number based killer sudoku with no given cage totals)
Influencells (my latest new variant)
Solution code: Row 9 followed by column 9 (18 digits)
on 12. October 2024, 21:43 by Mad-Tyas
"Modifier Cells" tag added
on 20. July 2024, 18:41 by Snookerfan
Excellent! Thank you
on 17. April 2024, 16:42 by Mikemerin
At one point a third of the way into the solve I found myself saying out loud “this puzzle is f* awesome.” The path you laid out with the ruleset was masterfully done and so satisfying to discover.
on 27. February 2024, 18:00 by Bankey
Had given up on this twice earlier, but managed to get it right this time. Tough but beautiful, as with your other entropy puzzles! Thanks, @ Mad-Tyas :).
on 14. February 2024, 22:09 by Myxo
Beautiful :)
on 14. August 2023, 13:02 by keaizhu
A refreshing puzzle! Play from beginning to end without jamming, fully and delightfully
on 6. February 2022, 10:15 by Lara Croft
Wenn das mal nicht passt: das war das 250. Rätsel, dass ich lösen durfte. Hat mir sehr gut gefallen. Danke für die Herausforderung.
-Antwort: Glückwunsch zu 250 gelösten Rätseln! Es ehrt mich, dass mein Rätsel die 250 geworden ist und es freut mich, dass Du Spaß an dieser speziellen Regel-Kombination hattest.
on 31. January 2022, 19:21 by Mad-Tyas
Added Entropy tag
on 30. January 2022, 11:50 by ryagami
Very fun and awesome logic!
on 30. January 2022, 08:34 by PrimeWeasel
A very nice solve!
on 30. January 2022, 04:29 by Crusader175
Congrats! Very fun puzzle!