Medusa
(Published on 9. August 2022, 18:01 by zetamath)
Normal sudoku rules apply.
Normal thermo rules apply. Cells along a thermo strictly increase in value from the bulb to the tip.
Additionally, every row column and box contains exactly one doubler. For purposes of thermos, the digit on a doubler counts as double the digit it contains.
Every digit from 1 to 9 is doubled exactly once.
Have fun, leave a comment if you enjoy the puzzle!
Solution code: Row 1 followed by Row 9
Comments
on 28. November 2023, 22:03 by StephenR
Sweet stuff, and not too hairy, thanks!
on 28. September 2022, 09:35 by MagnusJosefsson
Great puzzle as expected!
on 21. August 2022, 23:29 by twototenth
Brilliant brilliant as usual usual.
on 15. August 2022, 20:04 by Niverio
Very nice, loved it!
on 13. August 2022, 23:08 by Christounet
I stand petrified !
Another great installment with doubles, with similarities in the logic compared to your previous one. It is easy (and probably intended) to get misleaded by previous knowledge about thermos!
on 12. August 2022, 22:07 by cam
Absolutely delightful :) Thanks!
on 12. August 2022, 04:08 by Agent
This is a cool concept. Many elegant pieces of logic, and it solves very smoothly. Thanks!
on 11. August 2022, 02:49 by josh_johnson
Very nice puzzle from zeta, as always.
on 10. August 2022, 23:04 by JonnyKaufman
Brilliant. Nothing else to be said. Loved every minute of it.
on 10. August 2022, 21:35 by peacherwu2
Yet another masterpiece of Doubles!
on 10. August 2022, 14:54 by ICHTUES
Really cool concept and puzzle. Thx zeta!
on 10. August 2022, 14:06 by solidvoid
Wonderful puzzle! Bit tricky but I'm glad I could solve it!
on 10. August 2022, 08:02 by Ambrose
Wonderful, very glad I stuck with it after my early carelessness
on 9. August 2022, 23:06 by Piatato
Nice idea! It made me a bit paranoid for a while, but I managed to pull through. :-)
on 9. August 2022, 20:04 by bansalsaab
beautiful puzzle. took me some time to correctly figure out doubler on thermo but after that deductions flowed slowly and logically. Thanks for sharing
on 9. August 2022, 19:28 by peterkp
Can I have some clarification please. What is a doubler?
[It just doubles the value of the cell. So a 7 on a doubler counts as a 14 for example.]
on 9. August 2022, 18:03 by Vebby
Beautiful logic! I'm loving this doubler concept, I look forward to seeing it used with other standard constraints, particularly the arithmetic ones.
on 9. August 2022, 18:03 by tallcat
This one hooked me at the start and didn't let go till the end. Some really neat use of the doublers here.
