Logic Masters Deutschland e.V.

WSC-Training: Clueless Hidden Classic

(Published on 7. October 2019, 18:33 by JonaS2010)

As preparation for the WSC, I've made a large puzzle to practice for one of the team rounds. Have fun!

Clueless Hidden Classic

Classic Sudoku rules apply to each of the nine grids. Also, the nine central 3x3 blocks of the grids form a tenth puzzle, the "hidden classic", which has to be solved using standard sudoku rules. The cells of the hidden puzzle are marked grey for your convenience. Additional rules are as follows:

Top left: 1~9 Sudoku: Clues indicate the sum of all numbers placed in between the digits 1 and 9 in the row or column.

Top middle: Nonconsecutive Sudoku: Two digits in orthogonally neighbouring cells can't have a difference of 1.

Top right: Classic Sudoku

Middle left: Palindrome Sudoku: Digits along the grey lines form palindromes, that is each sequence reads the same forwards and backwards.

Middle: Classic Sudoku.

Middle right: Consecutive Circles Sudoku: Digits on a circle must form a consecutive sequence. It is part of the puzzle to find the starting point for each sequence. Not all circles are given.

Bottom left: Classic Sudoku

Bottom Middle: Perfect Squares Sudoku: If two cells contain a two-digit square number in reading direction this is marked with a small square. All possible Squares are given.

Bottom right: Next to Nine Sudoku: Clues outside the grid show all direct neighbours of the digit 9 in that row or column.

The puzzle with a higher resolution for download: PDF

Solution code: Enter the first five digits in row 1 for each of the nine grids, going from left to right and top to bottom (45 digits).

Last changed on on 8. October 2019, 13:12

Solved by Uhu, jirk, Joe Average, Feadoor, marcmees, skywalker, Luigi, Joo M.Y, Kwaka, Statistica, ch1983, Nothere, r45, saskia-daniela, Mody, dm_litv, rcg, Julianl, Alex, qw014052, tuace, AnnaTh, ManuH, bob, ... nicole1303, Circleconstant314, Ours brun, uvo, Mars, moss, sf2l, kishy72, ffricke, marsigel, sinchai4547, flaemmchen, cdwg2000, Timwi, BcVcB, HolyFracker, darksida, EKBM, ildiko, Jaych, zuzanina
Full list

Comments

Last changed on 13. January 2021, 04:42

on 5. December 2020, 03:16 by HolyFracker
Great set. At the very least, it gives me an idea how challenging international competitions can be; provided my lack of expertise at this point.

on 21. November 2019, 11:10 by sf2l
A Beautiful puzzle well constructed. Luckily the real one at Kirchheim was not so tough....

on 3. November 2019, 21:07 by nicole1303
Hallo Jonas, vielen Dank für dein tolles Rätsel, was sich auch gut alleine zuhause lösen lässt ;-)

on 19. October 2019, 20:32 by Realshaggy
Flaemmchen, nein, das ist korrekt, damit solltest du es lösen können.

on 19. October 2019, 13:45 by Statistica
@flaemmchen: streng aufeinander stimmt schon.

on 19. October 2019, 11:11 by flaemmchen
Da ich bei beim "Consecutive Circles Sudoku" jetzt schon mehrmals einen Fehler hatte, muss ich doch mal nachfragen:
sind die Ziffern streng aufeinander folgend, also z.B. 1/2/3/4 oder wäre auch 1/3/5/6 möglich?
Danke!

on 12. October 2019, 23:27 by Carolin
Ich habe mehrere Stunden lang versucht, das Rätsel unten in der Mitte mit Primzahlen statt Quadratzahlen zu lösen... Nachdem ich bewiesen hatte, dass es keine Lösung gibt, hab ich dann doch nochmal die Regeln gelesen. ;-)

on 11. October 2019, 10:55 by dm_litv
Very nice set.

on 9. October 2019, 14:13 by Statistica
Ganz großartig! Vielen Dank.

on 8. October 2019, 21:24 by skywalker
Excellent puzzle!!!

on 8. October 2019, 14:29 by Feadoor
Flows very nicely from start to finish, and some outstanding individual puzzles in there!

Last changed on 10. October 2019, 00:28

on 8. October 2019, 13:54 by Joe Average
Großartige Konstruktion. So machen Sudoku sogar mir Spaß.

on 8. October 2019, 13:12 by JonaS2010
Typo in solution code fixed

Difficulty:4
Rating:98 %
Solved:59 times
Observed:7 times
ID:00032D

Puzzle variant Large Multi-grid puzzle Filling puzzle

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Solution code:

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