Logic Masters Deutschland e.V.

Summit Yin Yang

(Eingestellt am 7. September 2026, 04:43 Uhr von Vythic)

Play on SudokuPad!

Normal sudoku rules apply.

Yin Yang: Shade some cells so that all shaded cells are orthogonally connected, all unshaded cells are orthogonally connected, and no 2x2 cluster of cells is entirely shaded or unshaded.

Secret Summit: Digits within shaded cells must be ascending or descending as they move orthogonally through the grid, with 1 and 9 reversing the ascension/descension. All possible orthogonally connected sequences of shaded cells must obey this rule.

YY Arrows: A digit on an arrow indicates how many shaded cells are in the direction of the arrow, including the arrow cell.

YY Cages: Digits in a cage sum to the number in the top-left of the cage and cannot repeat. Within a cage: odd digits are shaded, even digits are unshaded.

Lösungscode: The unshaded cells in Row 3 (left to right)

Zuletzt geändert am 7. September 2026, 13:10 Uhr

Gelöst von Aeon, Chaossudokusplease, leshushi, Luaryo, Snookerfan, redgecko, anothermember, Vodakhan , kangaroo, balpha, Malakree, karlmortenlunna, BlueDarner, marcmees, Miatc, Wahaj, josh_johnson, SMM, ... meiwanmeiliao, sze, lunettes-desolees, GorgeousNicko, arauwer, Goheels, Asphodel, PippoForte, Morphismic, mercierus, prodigis, kelvin, Gribba Bibba, Tompzini, Jesper, PuzzBmcg, patlapatat, mathhead
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Kommentare

am 8. September 2026, 17:49 Uhr von KeenanN
Took my a while to wrap my head around this one! Worth the battle, though. Thanks for sharing!

am 8. September 2026, 15:15 Uhr von Franjo
Thank you very much for creating and sharing this lovely YY-hybrid. Interesting constraint!

Zuletzt geändert am 8. September 2026, 10:36 Uhr

am 8. September 2026, 10:34 Uhr von amirs
Very nice puzzle! I see in the comments that I'm not the only one who completely forgot about one of the rules until a very late stage of the solve :)

am 8. September 2026, 07:02 Uhr von IAlreadyHaveAKey
What a lovely puzzle! Really nice flow - the grid looks daunting but it's actually quite approachable once you start asking the right questions.

am 7. September 2026, 22:15 Uhr von mosse
@BigHead

Your solution code is missing one digit

am 7. September 2026, 19:02 Uhr von Miatc
Kind of puzzle where I forget one of the strongest restraints for 90% of it
Fun how far you can get without it

am 7. September 2026, 18:16 Uhr von marcmees
Very nice. Thanks

am 7. September 2026, 17:45 Uhr von Malakree
Imagine needing to use all the rules to solve the puzzle, disgraceful.

am 7. September 2026, 17:40 Uhr von balpha
Such a fun solve! Beautifully constructed, really nice interaction between the constraints. Very enjoyable, thanks for sharing!

am 7. September 2026, 09:44 Uhr von Snookerfan
Very nice! Thanks

am 7. September 2026, 05:04 Uhr von Aeon
Exceptional puzzle where all the rules work together as one to progress. Beautiful!

Schwierigkeit:3
Bewertung:96 %
Gelöst:76 mal
Beobachtet:0 mal
ID:000UR4

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