Logic Masters Deutschland e.V.

Chaos Construction: Thermos

(Published on 8. May 2022, 01:00 by XeonRisq)

  • Rules:
  • The digits 1 to 9 must appear once in every row, column, and region. Regions are to be determined by the solver, and must be a set of nine orthogonally connected cells.
  • Thermos: Digits must increase as they move from the bulb to the tip. Digits must remain the same parity (odd/even) as the thermo stays in the same region; parity must change as it moves into different regions.
  • The digit in a circle cell specifies how many unique regions the thermo moves through.
  • The digit in a diamond cell specifies how many different regions exist on the thermo. (The same region can be counted multiple times if it is on separate sections of the thermo)
  • Small circles at intersections specify that three or more regions occupy the 2x2 area.
  • All circles (both types) and diamonds have been given.

  • Example Puzzle:
  • F-puzzles link ; CtC link



  • Puzzle:
  • F-puzzles link ; CtC link

Solution code: Row 7 followed by Column 9

Last changed on -

Solved by jkuo7, Jesper, twobear, Chilly, Elliott810, amarins, ns08, dunder, Christounet, marcmees, Niverio, polar, isajo4002, SeveNateNine, Sewerin, dogfarts, steeto
Full list

Comments

Last changed on 16. May 2022, 15:03

on 16. May 2022, 11:56 by Christounet
Phew ! This took me a while but I got it !! Very nice use of the negative constraints. I first overlooked how powerful they were and that caused me to get stuck a couple times. But in the end, it felt very rewarding ! Thanks !
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Thanks for the solve and feedback, glad you enjoyed the puzzle! And yes, the negative constraint is powerful in this one and does come into play at points in the solve path.

Last changed on 10. May 2022, 22:01

on 10. May 2022, 05:03 by Elliott810
Sensational puzzle! Unbelievable how much information the thermo rules can encode. Would love to see another puzzle with this ruleset. Take a bow and thanks:)
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Appreciate the solve and the humbling feedback/compliment. Very glad you enjoyed the puzzle and now may give setting another puzzle with this ruleset a go.

Last changed on 9. May 2022, 21:04

on 9. May 2022, 18:38 by Chilly
Very nice - difficult, but never to the point that it wasn't possible to progress.
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Appreciate all your valuable feedback as I work through creating these CC puzzles. Your opinion is always held in the highest regards. Also, thanks for the solve/compliment.

Last changed on 9. May 2022, 19:52

on 8. May 2022, 17:18 by twobear
Very nice one! There are so many interesting deductions arising from both longer thermos and shorter thermos. Thank you!
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Yeah, the solve path on this one really surprised me and the different types of deductions that can be made. Thanks for taking the time to tackle this puzzle, and really appreciate the comment/feedback.

Last changed on 9. May 2022, 19:36

on 8. May 2022, 12:36 by Jesper
Fun and challenging, thanks
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Thanks for the solve/feedback. That was exactly what I was aiming for, glad you enjoyed it.

Difficulty:5
Rating:98 %
Solved:17 times
Observed:5 times
ID:0009UU

Variant combination Online solving tool

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Solution code:

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