Logic Masters Deutschland e.V.

Yin Yang FSOE

(Eingestellt am 9. November 2025, 10:34 Uhr von flutchman)

Note: this is a corrected version of a puzzle I posted about a week ago. Due to my limitless stupidity, I missed a colouring error at the end of the solve, breaking the puzzle. This one should work.
The solving path is identical, apart from the very last part. If you (almost) solved the earlier version and want to claim it here, send me a hidden comment and I'll provide you with the solution code.

Rules

• Normal sudoku rules apply.
• Yin Yang: colour the grid using two colours, such that all cells of the same colour are orthogonally connected, and no 2x2 area is fully one colour.
• First seen odd/even (FSOE): odd clues outside the grid give the first odd digit seen from that direction; even clues give the first even digit seen from that direction
• Coloured FSOE: each FSOE clue only sees digits of one yin yang colour, while digits of the other colour are completely meaningless for that clue. Which colour corresponds to each clue must be determined.
• Fog: some clues are covered in fog. Placing correct digits in the grid may lift some of the fog to reveal more clues.

Note: you may place colours or labels outside the grid to assist your solve. Those won't interfere with the solution checker.

Have fun and keep flutchin'.
Yours, Dying Flutchman

Please click the image to solve.

This is the fourth puzzle exploring the combination of yin yang rules with column and row clues. If you like this puzzle, you might be interested in the earlier ones as well.
Yin Yang Skyscrapers
Yin Yang X-sums
Yin Yang Sandwiches

Lösungscode: Row 5.
Enter 9 numbers, with each switch in yin yang colour indicated by a * (e.g. 12*3456*78*9)


Gelöst von karlmortenlunna, TripleABattery, Piff, Mr_tn, by81996672, 3ColorTheorem, CitrusGremlin, bansalsaab, sehringdipity, War, Voidslime, jkuo7, grrz, Mr. Happy, kublai, itweb, Elker, ole-1995a, mahdiosm, ... Joyofrandomness, 111sophia111, qmxqmx123, darkgently, Leonard Hal, soyorin, akodi, illegel, saoer, abed hawila, Agent, Jewel, MTFlowCzq, saulg39, lfm, yangduoxing, pecha_berrie, LabRat, lmdemasi
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Kommentare

Zuletzt geändert am 15. November 2025, 03:41 Uhr

am 15. November 2025, 03:40 Uhr von Jewel
Extremely fun puzzle with a really satisfying solve, I'd definitely love to see more Yin Yang foggy FSOE!

am 11. November 2025, 16:32 Uhr von jinkela114514
Nice puzzle, but it should be a 5* difficulty for me.

am 10. November 2025, 08:57 Uhr von grrz
Very nice puzzle! It’s not hard, it’s just tricky to track and mark digits in YY and parity at the same time

am 9. November 2025, 22:45 Uhr von War
Excellent puzzle. If you're familiar with yin yang puzzles than this should be very approachable!

Zuletzt geändert am 10. November 2025, 01:42 Uhr

am 9. November 2025, 20:26 Uhr von bansalsaab
Thanks Flutchman for correcting and you infact made it harder.

am 9. November 2025, 20:19 Uhr von CitrusGremlin
Lovely and difficult puzzle. Took me about two hours. Thanks for correcting it.

Schwierigkeit:4
Bewertung:99 %
Gelöst:56 mal
Beobachtet:2 mal
ID:000Q1N

Lösung abgeben

Lösungscode:

Anmelden