Logic Masters Deutschland e.V.

The Concatenation Game

(Published on 8. February 2026, 19:13 by marty_sears)

This puzzle is a smaller and more simplified version of a recent ruleset from the excellent Sotehr, in their puzzle Necessity.

    Rules:

    Normal 6x6 sudoku rules apply. For each arrow, all the digits it points at sum to a two digit total. The two digits of that total sum to the digit on the arrow.

Solution code: Row 3 from left to right

Last changed on on 8. February 2026, 20:58

Solved by Manta-Ray, emoney1374, asynchronous, mscha, Sotehr, 3ColorTheorem, Zibl, efnenu, protheph, Bravissimo, AKernel, Nylimb, Exigus, eripsa, thoughtbyte, hamosphere, mir85, WithIceCream, balpha, emeyo, ... konklone, mayirin, woody, fthompson, DaleVandermeer, karlmortenlunna, VolpeRosso, CitrusGremlin, alex9801, flip1995, olliwright, blackjackfitz, InterestingAlgae, 99jau99, KelleyCook, EMCaoloft
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Comments

yesterday, 17:17 by blackjackfitz
Huzzah!

on 13. February 2026, 12:24 by davidz32z
Fun little puzzle with lots of math which proved I might need a cup of coffee this morning...

on 12. February 2026, 17:06 by ThymePass
A fun li'l ruleset! Cheers :)

on 10. February 2026, 19:51 by psams
You have captured the look of a 1970's TV game show (see Jeopardy or The Price is Right) with that attractive border.

on 10. February 2026, 12:24 by Franjo
Thank you very much for creating and sharing this great little puzzle. Interesting idea.

on 10. February 2026, 01:05 by SanFranSam
I get to the end and think i have a deadly pattern. Looking and looking, then realize that i haven't finished off one of the arrows. ;)

on 9. February 2026, 14:45 by rojspencer
That was fun! Thanks

on 9. February 2026, 02:01 by Angara
Very nice ruleset! thanks Sotehr and Marty Sears!

on 8. February 2026, 19:39 by Sotehr
Lovely! Thank you for the shout!

Last changed on 8. February 2026, 20:56

on 8. February 2026, 19:34 by mscha
Cute little puzzle!
I must admit, I solved it with a lot of trial and error...

Marty: whatever works for you :) Trial and error isn't needed though...

on 8. February 2026, 19:20 by Manta-Ray
Great puzzle, thanks!

Difficulty:1
Rating:92 %
Solved:211 times
Observed:3 times
ID:000RDD

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Solution code:

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