Logisch lösbar
Dutch Flat Mates
Dieses Rätsel ist von Flinty inspiriert.
Solve online in Penpa+ or in Sudokupad.
Wie alle meine Sudoku-Varianten kann dieses Rätsel rein logisch gelöst werden. Raten ist nicht erforderlich, und es sind auch keine ausgefeilten Lösungstechniken nötig; es genügen einfache Sudoku-Schritte und natürlich die Logik, die diese spezielle Variante zu bieten hat. Falls du diese Logik nicht findest oder nicht weiterkommst, kannst du in den Kommentaren unter diesem Rätsel nach einem Tip fragen, und ich werde dir gerne helfen.
Verwende die üblichen Sudoku-Regeln.
Jede Ziffer 5 hat entweder eine 1 direkt über sich, oder eine 9 direkt unter sich, oder beides.
Lösungscode: Zeile 6
am 21. Februar 2025, 22:45 Uhr von Rollo
Flat Mates bringt immer wieder viel Spaß! Danke an Flinty und Richard.
am 21. Februar 2025, 21:33 Uhr von sujoyku
Phew, this was definitely harder than 2 stars for me. It is a very nice display of the great Dutch Flat Mates constraint. Thank you, Richard!
am 21. Februar 2025, 13:05 Uhr von goodcity
Really enjoyed this one, thanks Richard !
am 21. Februar 2025, 12:55 Uhr von Flinty
Lovely stuff. I'm honoured to get a nod in your epic series. I was intrigued when you commented about DFM on a previous puzzle whether you would pair it with another constraint(s) or do a 'classic'. Some tricky (2/5 level) steps in this puzzle in my opinion, but I really, really enjoyed it. Thank you. :)
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Thank you in return for the inspiration.
And I am pleased to read that you liked what I made out of this ruleset. :)
The nature of SVS is that every new variant I add has only one constraint. By combining rulesets, there would be at least 10.000 different working combinations of constraints, and I am sure my life would be too short to cover them all...
Besides: I am always on the lookout for suitable single constraint types to include in future championships or competitions. Being in charge for the Dutch Sudoku Championship, I like to add sudokus with an easy ruleset to my list of possible variants. When I start writing for a championship, I always go through my list of recent SVS's and many are too difficult as type to use. But this one is very likely to end on my wish list. The championship 2025 is already prepared, but for future episodes I am sure I will use it.
To conclude: After solving a bunch of DFM variants, I have to say that this is a variant that combines wonderful with many other constraints, so I can imagine your thoughts about whether I would use the classic variant or a comination. :)