The Stable King 3
(Eingestellt am 23. März 2025, 11:31 Uhr von NurglesGift)
Normal sudoku rules apply.
Any digit inside a cage can not be separaded by a king's or knight's move (in chess) from the same digit.
Any digit outside a cage must be separaded by a king's and/or knight's move (in chess) from at least one of the same digit.
See example below.
Digits within a cage must sum to the total in the cage corner.
Digits can not repeat within a cage.
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Feel free to recommend this puzzle to anyone.
Feel free to take special rules for your own puzzle.
Feel free to give feedback.
Bless you!
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Example
The 7 is within a cage and therefore none of the blue cells in box 2,4 and 5 can contain a 7 i.e. can not be a king's or knight's move away from the 7
The 6 is not within a cage and therefore at least one of the yellow cells in box 5, and 8 needs to contain a 6 i.e must be a king's and/or knight's move away from one or more 6's
Lösungscode: give the digits of row 8 (left to right)
Kommentare
am 18. April 2025, 15:39 Uhr von DerRiese
"conflicts" are not that bad ..
If you do right, in the end all cells in cages are white and all outside are red :)
am 7. April 2025, 09:25 Uhr von TheNineElements
Solve Time: 29:50
I rated this 2/5 difficulty
Interesting & fun puzzle! I've never attempted a puzzle with this ruleset before, and it was a very interesting (& fun) experience and definitely creative idea for a rule.
When I first began solving, I felt like the rule was very unusual and couldn't seem to understand how it could be used. I spent maybe 3-4 minutes sort of "tinkering" with randomly placed digits trying to understand the ruleset. However, once I began coloring a handful of digits and actually attempting to make progress on the puzzle - I suddenly had a "realization" about how I would be able to use the anti-knight/king variant rule. It sort of just 'clicked' in my mind and the solve went very smoothly from there (although I kept forgetting the rule included an anti-king move constraint - as I found myself defaulting to knight move logic only).
I think that the difficulty level for the puzzle was very enjoyable and perfect for "teaching"/introducing me to the ruleset. The classic sudoku and killer logic was all quite easy/approachable, so I was able to focus on the unusual chess constraint logic as I worked through the puzzle. It felt like the puzzle sort of "held my hand" through the early phase of the solve by keeping the other logic simple - making the process of learning this rule very enjoyable. Even though I'm very familiar with "normal" anti-knight and anti-king restrictions, this modification to the rules completely changed the solve experience, and it really felt like learning a totally new variant rule as a novice.
As a general tip to anyone who is attempting this puzzle and struggling to understand the rules and/or make progress, I found that coloring made the logic a lot easier to visualize and understand. By coloring, I was able to focus on one candidate cell at a time, working backwards through the rule to determine whether the candidate was possible (and then uncoloring it if there was a contradiction). I don't think that coloring is *absolutely* necessary, but I don't think I would have been able to solve the puzzle myself without it.
Overall great puzzle & unique/interesting ruleset! I definitely recommend giving it a go. Thanks for sharing!
am 25. März 2025, 16:34 Uhr von illandres
Took me some time to get my head around what was allowed and wasn't with the anti-knight/king, but once I did, it was super fun to solve! Thanks for setting! On SudokuPad I did have to turn off conflicts for anti-knight/king because it showed the friendly cells as wrong. I know most players have conflicts off, but just in case you play with them on, heads up!
am 23. März 2025, 13:38 Uhr von ArmagedDan
Your puzzles are exactly the kind of thing that I love, but I always find them harder than they are rated. I don't know why I struggle with them, but I am glad I got through it in the end.
