Sudoku Variants Series (042) - Mathdoku
(Published on 16. September 2014, 00:00 by Richard)
Mathdoku
Solve online in Penpa+ (thx Nick Smirnov!) or F-Puzzles (thx checkoway!)
Place the digits from 1 tot 9 in every row, column and 3x3-block. The numbers in the grid are the results of binary operations (addition, subtraction, multiplication or division) of the digits on each side of the number. In each 3x3-block all the four binary operations have to be applied once.
Solution code: Row 2, followed by column 5.
Comments
on 14. July 2022, 09:21 by Richard
Added links for online solving. Thanks Nick and checkoway!
on 2. February 2022, 19:19 by checkoway
f-puzzles link: https://f-puzzles.com/?id=yb6kcpn5
on 29. November 2020, 19:50 by Nick Smirnov
Penpa:
https://git.io/Jkpue
on 7. October 2020, 11:43 by Richard
@Roeno1289: That's nice to read! I am curious how far you'll get with the series. A lot of other players have started, but somehow stopped somewhere along the line. In general, the puzzles tend to get harder later on. In the beginning, the puzzles were also used in an on line competition (Daily League) so they must not be too hard. That competition has stopped in the mean time, so the difficulty has risen a bit. In general, I still try to make them not too difficult, because I like to write accessible puzzles for a wide group of players.
on 7. October 2020, 10:53 by roeno1289
Ich bin durch den Youtube Channel "Cracking the Cryptic" auf diese Variants Serie gestossen, und bin sie nun am "abarbeiten". Die Sudokus haben einen angenehmen Schwierigkeitsgrad und machen eine Menge Spass zum lösen. Diese Variante war mein Favorit bis jetzt. Danke Richard für diese tolle Serie.
on 4. June 2016, 14:39 by ohm0123
This mathdoku good.
on 17. September 2014, 15:37 by CHalb
Beautiful. I liked the concept at first sight and really enjoyed solving it.
on 16. September 2014, 17:30 by ibag
Naja, dazu kommt außerdem, dass ich es schon einmal getestet hatte ...
on 16. September 2014, 16:28 by pin7guin
Dabei sagst Du doch selber immer: "Wer lesen kann, ist klar im Vorteil!" ;-)
on 16. September 2014, 16:03 by ibag
aaaaaaarghhh .... wie schwierig das ist wenn man den letzten Satz nicht liest! Und wie dusselig den letzten Satz nicht zu lesen, wenn man ihn doch selbst übersetzt hat! ;-)))))
on 16. September 2014, 07:39 by r45
Toll konstruiert.
