## Classic Sudoku

(Eingestellt am 26. August 2020, 15:44 Uhr von cdwg2000)

Classic Sudoku

Rules: Classic Sudoku rules apply.

The author of the puzzle is my friend 胡蒙汀(Hu Meng Ting) from China. I hope you like it and would appreciate any feedback.

Special note: If you use one of the observation techniques of Classic Sudoku, you can easily complete this problem, so the difficulty of 3 stars is given. At the same time, the three puzzles posted earlier use this similar observation technique, and a few Sudoku in various forms will be released later, and then this technique will be appropriately developed through the forum.

F - puzzles link

Hint has:

Key Hint：

Prove a conclusion: the 4*4 rectangular area between the fourth row, the ninth row, the fourth column and the ninth column is 16 grid numbers = the fourth row (12349 grids), the ninth row (12349 grids), the fourth Column (12349 grid) and ninth column (12349 grid) have 16 grid numbers equal, forming a complete complementary relationship.

Lösungscode: Row 1, followed by coloum 5.

Zuletzt geändert am 17. Oktober 2020, 04:14 Uhr

Gelöst von Isa, NikolaZ, SKORP17, zhergan, zorant, MumboJumbo, MavericksJD, ManuH, geronimo92, Snowhare, lutzreimer, rcg, Nothere, Rollo, r45, Quarterthru, rimodech, saskia-daniela, Frankenfruity, kishy72, Fred76, Puzzle_Maestro, Hausigel, rob, skywalker, Zzzyxas, katch, Imperial Marcher, Tigerhu, Ours brun
Komplette Liste

### Kommentare

am 18. Oktober 2020, 04:27 Uhr von cdwg2000
@detuned

Very happy for your feedback, thank you!

am 17. Oktober 2020, 04:14 Uhr von cdwg2000
repair title

Zuletzt geändert am 10. September 2020, 17:07 Uhr

am 10. September 2020, 17:07 Uhr von detuned
This is one of the most remarkable Sudoku puzzles I've ever seen - previously I thought that applications of the so-called Phistomefel's theorem could always be side-stepped by other easier techniques. I've double checked using solvers and this is not the case with this puzzle, which makes this the first time I've seen genuine novelty in a Sudoku in as long as I can remember.

I think some of the petty comments and vindictive ratings here are very unfortunate, and certainly not what this puzzle deserves!

am 9. September 2020, 11:22 Uhr von cdwg2000
Increase problem solving tips

am 30. August 2020, 00:46 Uhr von cdwg2000
@geronimo92

Ok.

am 29. August 2020, 12:46 Uhr von geronimo92
Please could you let a gap of several days before pubishing your next puzzles? thanks a lot by advance !!

am 26. August 2020, 16:55 Uhr von SudokuExplorer
I just realised you've uploaded 4 puzzles in the space of three days (which is a bit too many given the current flood of puzzles).

Read here about the situation on the forum (written by Richard):
http://forum.logic-masters.de/showthread.php?tid=1843&pid=32345#pid32345

Maybe wait a few days between uploading each puzzle (so that new puzzles don't get lost). This message isn't to stop you from posting future puzzles, but to just make you aware of the current situation.

 Schwierigkeit: Bewertung: 79 % Gelöst: 30 mal Beobachtet: 0 mal ID: 000474

Lösungscode: