Logic Masters Deutschland e.V.

Colour Coordinated Differences

(Eingestellt am 22. Oktober 2025, 13:27 Uhr von marty_sears)

    Rules:

    Normal sudoku rules apply.

    The two digits on an arrow give the coordinates of a particular target cell somewhere in the grid. The digit on the arrow's shaft indicates the target cell's row, and the digit on the arrowhead indicates the target cell's column. The difference between the two digits should be placed into the target cell. No two arrows target the same cell.

    Also:

  • A pink arrow contains two consecutive digits.
  • A green arrow contains two digits with a difference of at least 5.
  • On a black arrow, one digit is double the other.
After you've solved this, check out the sequel, Colour Coordinated Sums

Lösungscode: Row 9 from left to right

Zuletzt geändert am 4. November 2025, 12:08 Uhr

Gelöst von Blake Saligia, StefanSch, Steven R, gdc, Scojo, ViKingPrime, TJ , Default, zeniko, chinesemaster, lmg131, FrauHoppmann, rkond, TripleABattery, psych, Shmartus, dannyboy, zlotnleo, wiebecommajonas, ... LuciIsTrans, Fredxl, Klook, erkiraak, arauwer, SFP, Clementi, cqq, marcnesium_iv, olc, redfoot, Morisenseiisgod, snn, EFlatMinor, Baconator, PuzzBmcg, Jens, giusb, CareBaer, Tortugo, stranac, Tug
Komplette Liste

Kommentare

am 19. Dezember 2025, 10:56 Uhr von Fredxl
Ugh, this is unbelievably good. It’s genuinely moving!

am 7. November 2025, 17:28 Uhr von ThymePass
Very clever and with an optimally positioned set of clues to keep the solve going smoothly. That was a lot of fun!

am 5. November 2025, 01:41 Uhr von zardoz37
Totally brilliant and original logic from Marty Sears.

Zuletzt geändert am 6. November 2025, 09:55 Uhr

am 4. November 2025, 09:38 Uhr von SirRanch
It's been a while since I felt compelled to praise a puzzle in the comments but this certainly deserves it. Such a fun solve path. Also, was the arrow easter egg intended Marty? That gave me a chuckle

Marty: haha thankyou, which easter egg do you mean?

If you color all the potential cells for the pink and black arrows (before narrowing it down) it kinda forms an arrow which I thought was neat

Zuletzt geändert am 3. November 2025, 00:06 Uhr

am 1. November 2025, 15:49 Uhr von Klausku
Brilliant puzzle. How do you come up with these ideas? I love the finish. Thanks again, Marty!

Marty: this particular one was inspired by a puzzle by Piatato called Coordinate Arrows - you should check it out, and Simon's solve of it on CtC which is one of my favourite videos on the channel

Zuletzt geändert am 31. Oktober 2025, 01:08 Uhr

am 31. Oktober 2025, 00:54 Uhr von Piatato
Very neat solvepath, thanks!

Marty: very happy you enjoyed it. I shouted you (and your original puzzle) out in my comment on this evening's feature on Youtube :)

am 30. Oktober 2025, 23:21 Uhr von RoystonDA
Loved this! Creative way to incorporate indexing with some classic variant rules. The break in for it took me some time to understand but was a fun discovery.

My solve time was a little faster than I expected, so I've marked this as 2*. Keep up the fun work dude!

Zuletzt geändert am 24. Oktober 2025, 18:27 Uhr

am 24. Oktober 2025, 18:27 Uhr von razor2811
Absolutely Beautiful Puzzle, but that break-in is definitely 3 Stars of difficulty not 2.

am 24. Oktober 2025, 14:46 Uhr von davidz32z
Wow this one was incredible! Some very new logic for me that I think is worth 3 stars, but what an incredible (new?) rule set!

am 23. Oktober 2025, 17:44 Uhr von Olive
Great puzzle, thank you :)

am 23. Oktober 2025, 12:50 Uhr von Franjo
Funny indexing ruleset! Love this. Thank you very much for creating and sharing another beautiful puzzle.

am 23. Oktober 2025, 10:30 Uhr von ThatUnfunPerson
Like most marty_sears puzzles it seems impossible at first, but is surprisingly approachable. Especially when you realise the arrows are kropki dots and german whisper lines with some extra pizzazz.

Everything falls into place once you start thinking about the possible locations and values of target cells.

am 23. Oktober 2025, 10:18 Uhr von mscha
Wonderful puzzle with a brand new ruleset. This is one of those puzzles that seem impossible, but once you figure out how to get started, all puzzle pieces fall in place nicely.

am 22. Oktober 2025, 22:28 Uhr von bboom
Very cool puzzle. The color scheme works very intuitively, since the green and pink arrows are effectively just very short whisper and renban lines.

am 22. Oktober 2025, 21:00 Uhr von elyas_targ
A very pleasing puzzle, I really enjoyed starting with the geometric coloring of possible target cells and working from there.

am 22. Oktober 2025, 19:29 Uhr von psych
incredibly creative, simply brilliant!!

Zuletzt geändert am 22. Oktober 2025, 20:37 Uhr

am 22. Oktober 2025, 18:37 Uhr von CitrusGremlin
Do the targeted cells have to be on the line emanating from the arrow? Can targeted cells be on arrows themselves?

Marty: A target cell can be anywhere, including on the arrow that is targeting it :)

Schwierigkeit:2
Bewertung:98 %
Gelöst:295 mal
Beobachtet:2 mal
ID:000PSW

Lösung abgeben

Lösungscode:

Anmelden