Logic Masters Deutschland e.V.

10-in-9 calcudoku #3 (2021)

(Eingestellt am 1. Januar 2021, 00:00 Uhr von Nylimb)

I noticed recently that 2021 is a product of two 2-digit primes, which suggested a possibility for a new 10-in-9 puzzle. It took many tries to make it work, but I'm quite pleased with the result.

This is a variant of a calcudoku (also known as KenKen) puzzle, in which some cells contain 2-digit numbers.

Fill the grid with 1-digit and 2-digit numbers, so that every row and column contains each of the 10 digits, from 0 to 9, exactly once: Eight cells contain 1-digit numbers, and the other cell contains a 2-digit number (from 10 to 98).

Each cage indicated by the thick lines shows an arithmetic operation (+, -, x, or /) and the result of that operation applied to the numbers in the cage.

A digit can occur more than once in a cage, as long as the occurrences are not in the same row or column.

If you don't want to figure out the prime factorization of 2021 yourself, select the text in parentheses: (2021 = 43 * 47)

The puzzle is available on Penpa.

Lösungscode: Row 5 and row 6. Include both digits of the 2-digit numbers.

Zuletzt geändert -

Gelöst von CJK, Dandelo, skywalker, Jesper, panthchesh, cdwg2000, marcmees, ManuH, NikolaZ, zorant, jessica6, Statistica, ropeko, sandmoppe, rimodech, Mody, polar, Mark Sweep, CastleSheepside, kevlar101, ildiko, misko, Vebby, PixelPlucker, KlausRG
Komplette Liste

Kommentare

am 14. August 2021, 11:18 Uhr von Hausigel_mod
Labels/Tags changed

am 4. Januar 2021, 14:02 Uhr von Statistica
Nice construction (and thanks for the factorization... :-))

am 2. Januar 2021, 15:19 Uhr von marcmees
very nice ... although completely logical, got me puzzled for a while.

am 2. Januar 2021, 14:00 Uhr von cdwg2000
Perfect!One day later, the challenge was finally successful. It was indeed a big challenge and very logical. It's another 10in9 puzxle that I added to the "Favorite Puzzle" menu, thank you!

am 2. Januar 2021, 01:44 Uhr von panthchesh
Thanks for the puzzle! That was a lot of fun! :)

am 2. Januar 2021, 00:22 Uhr von Jesper
Great puzzle! Very friendly start, but it gets harder along the way. Elegant logic also in the more difficult deductions.

Zuletzt geändert am 1. Januar 2021, 22:54 Uhr

am 1. Januar 2021, 22:49 Uhr von Dandelo
@panthchesh: Looks ok. I tried exactly the same. I just had some more numbers, where you have blanks. I tried to use Law of Leftovers exactly that way. But it never worked in three tries, because I became crazy with the adding and subtracting.

I decided to look for another way before trying again, and luckily there has been another possibility. And in the end, the columns we both couldn't deal with were filled...

PS: Maybe you counted correctly, but forgot that there is another cell to be filled with a 2-digit number in that area?

am 1. Januar 2021, 19:41 Uhr von Dandelo
Very nice puzzle! Completely logical solving path, but absolutely not easy.

But law of leftovers with 10-in-9 is too weird for me ....

Zuletzt geändert am 1. Januar 2021, 00:10 Uhr

am 1. Januar 2021, 00:09 Uhr von cdwg2000
@Nylimb

Everything looks perfect, I will set aside more time to challenge it later.Happy New Year!

Schwierigkeit:4
Bewertung:96 %
Gelöst:25 mal
Beobachtet:3 mal
ID:00051D

Rätselvariante Online-Solving-Tool

Lösung abgeben

Lösungscode:

Anmelden