Timeline for Are there published Sudoku puzzles that require guessing?
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| May 13, 2021 at 15:59 | comment | added | User12345 | Puzzle 1 is missing a row. Puzzle 2 is solvable by Y-wing: sudokuwiki.org/… . Puzzle 3 can be solved by coloring candidates: sudokuwiki.org/… | |
| S Dec 20, 2016 at 8:22 | history | suggested | boboquack | CC BY-SA 3.0 |
Removed unneeded commas
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| Dec 20, 2016 at 8:17 | review | Suggested edits | |||
| S Dec 20, 2016 at 8:22 | |||||
| Aug 27, 2015 at 6:42 | history | edited | Rohcana | CC BY-SA 3.0 |
Formatting and clarity
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| Jan 27, 2015 at 0:32 | comment | added | wolfmanx | Just to be clear, that these are not very exceptional: All puzzles at level "umulig" from (menneske.no/sudoku/random.html?diff=9) cannot be solved by the basic techniques. But they can be solved by a single level of "trial-and-error" reasoning. | |
| Jan 27, 2015 at 0:22 | comment | added | wolfmanx | OK. When limited to the basic heuristics: naked/hidden single, single/double column, pair/triple quad, the three puzzles cannot be solved. However all three of them can be solved by making a single guess, which makes them pretty easy. You can see an analysis of the puzzles at (sw-amt.ws/sudoku/level-medium/se-guess-required-1-base/…), (sw-amt.ws/sudoku/level-medium/se-guess-required-1-base/…), (sw-amt.ws/sudoku/level-medium/se-guess-required-1-base/…) | |
| Jan 20, 2015 at 18:13 | comment | added | Florian F | To prove that whould first require a clear definition of what are all heuristics. | |
| Jan 20, 2015 at 14:52 | comment | added | Taemyr | Where is the proof that sodukuhints.com utilizes all possible heuristics? | |
| Jan 20, 2015 at 0:40 | review | Late answers | |||
| Jan 20, 2015 at 9:09 | |||||
| Jan 20, 2015 at 0:25 | review | First posts | |||
| Jan 20, 2015 at 3:24 | |||||
| Jan 20, 2015 at 0:23 | history | answered | Jude | CC BY-SA 3.0 |