Logic Masters Deutschland e.V.

Now the People Will Know We Were Here

(Eingestellt am 17. April 2024, 16:15 Uhr von ViKingPrime)



Normal Sudoku rules apply.

Kropki: White dots separate two cells containing consecutive values; Black dots separate two cells where one value is double the other [1:2].
Renban (pink): Values along a Renban line form a set of consecutive, non-repeating values in any order.
Nabner (gold): Values along a Nabner line form a set of non-consecutive, non-repeating values in any order (e.g. if a cell of value 3 appears on a Nabner line, then values of 2 and 4 cannot appear).


Hot/Cold: There are 9 Hot cells contained within the grid comprising a set of the digits from 1-to-9. Each row, column and box contains exactly one Hot cell. There are nine 9 Cold cells contained within the grid following the same rules as the Hot cells. A cell may have only one of these roles.

for Kropki/Renban/Nabner value(s)
Hot cells increase the value of the contained digit by 1.
Cold cells decrease the value of the contained digit by 1.


I was about to go with some dull, generic title and then the puzzle thumbnail tickled the back of my mind. Those who know will appreciate it, for everyone else do yourselves a favour and search up some Heritage Minutes and enjoy a little bit of Canadiana.

(HINT - this is ViKingPrime from the future, here to give some advice so your solving experience is much more pleasant - don't necessarily think about the Hot/Cold digits that have gone into the puzzle, rather think about what's left to be put in the puzzle and where they can go... a subtle but important difference!).

Here are some puzzles from other setters using the same constraint:
Hot and Cold by brennan77
Hot and Cold Cages by brennan77

Have fun!

Solve in SudokuMaker!
Solve in SudokuPad!

The Hot/Cold Series


Watch on Cracking the Cryptic

Lösungscode: The digits along Row 2, left-to-right.

Zuletzt geändert am 30. April 2024, 08:04 Uhr

Gelöst von h5663454, SKORP17, ChinStrap, gdc, bansalsaab, SirWoezel, sanabas, lmdemasi, Nell Gwyn, marty_sears, Migu, ThePedallingPianist, tiuhto, Bjd, BHUNTER47, peacherwu2, giladooshlon, samuel1997, jkuo7, ... sorryimLate, mew_rocks, Elliott810, Paletron, P12345, wand, jinkela114514, Hazem-77, madhupt, SudokuHero, tonald, ZornsLemon, Tom-dz, FlowJo, OGRussHood, yangduoxing, QuiltyAsCharged, Leilalu222
Komplette Liste


am 21. April 2024, 20:40 Uhr von ViKingPrime
Added spoiler-free solving hint to introduction.

am 21. April 2024, 15:36 Uhr von jinkela114514
@peacherwu2, not Simon but Mark on CTC

am 20. April 2024, 19:05 Uhr von peacherwu2
Magnificent! This truly deserves a CTC with Simon!

am 19. April 2024, 00:50 Uhr von marty_sears
A brilliant return! So many lovely bits in this, especially the opening few moves

Zuletzt geändert am 18. April 2024, 12:27 Uhr

am 18. April 2024, 12:25 Uhr von sanabas
Fantastic. No extremely tough steps, but the difficulty & the elegance is sustained all the way through

am 18. April 2024, 11:44 Uhr von SirWoezel
I'm with @bansalsaab. Did put this on my list of farourites.

am 18. April 2024, 02:57 Uhr von bansalsaab

am 18. April 2024, 01:20 Uhr von gdc
Feels like I haven't seen a VKP puzzle for a while and you're coming back hitting hard. Very interesting opening logic and a fantastic challenge from start to finish,

am 17. April 2024, 21:26 Uhr von ChinStrap
This was superb. Absolutely brilliant opening and strong logic all the way through. Going to devour the rest of this series now.

am 17. April 2024, 16:46 Uhr von ViKingPrime
Updated difficulty.

Bewertung:97 %
Gelöst:39 mal
Beobachtet:3 mal

Variantenkombination Online-Solving-Tool

Lösung abgeben