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Mathdoku+

Based on the same rules as the hit KenKen(tm) game, as printed in the New York Times and The Times (uk).
Related to Sudoko, but with a mathematical twist
- use the arithmetic challenges in each cage to help solve the puzzle.

Source code available under the GPL.

*
* Why does this app looks so similar to MathDoku? **This app is based on the Mathdoku App which was originally created by Ben Buxton and several other contributors. I joined the project of Ben in January 2013. I was the main (and as good as the only) developer for versions 1.96 (released in May 2013) and 2.0 (released in September 2013).After release of version 2.0 I decided to leave the project of Ben and started development of this app based on a copy of version 2.0.0 of Mathdoku. As a result I am no longer restricted to certain boundaries which were imposed by Ben and I now have full freedom to develop the app the way I want it to be. The users of this app will decide if this was a good decision or not.

Category : Puzzle

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Reviews (27)

Mon. E. Jan 12, 2019     

Awesome app. I uninstalled because it's so addictive!

Dav. S. Apr 17, 2016     

Running on Android phone, signed into Google plus uploaded my scores to leader boards. Added game to tablet, logged into Google plus. Total it up update leader boards it didn't update any of my scores from phone to tablet. Would be nice if it did score based on time / mistakes average accuracy. Most of the 'high scores' are from people putting in random numbers the fastest.

Rus. A. Apr 24, 2015     

Well done. Here are some suggestions. 1. Auto-fill cells that have only one possibility remaining. 2. Eliminate the snide remarks about less experienced players. 3. Add a hint option that shows the next forced move if any--and explains why it is forced. 4. If there are no forced moves provide an option to let that be known. 5. Indicate bad tentative values.

Cli. H. May 16, 2014     

Fabulous. Based on the original Mathdoku app - which was good but had gone off the rails somewhat with a shrinking grid, dubious font choice and some niggling bugs which made it difficult to use on my Nexus 7 and impossible to use on my Nexus 4. Mathdoku+ corrects all those faults and adds some useful extra features of its own. Can't praise this app highly enough.

Dav. A. May 16, 2016     

I am finding your Mathdoku+ app to be one of the better patience games. My only question is that there seem to be little value in taking time to finish puzzles perfectly as stats don't recognise anything but time. I don't care about leader boards, just whether I'm improving.

Che. d. K. Feb 17, 2016     

Just downloaded this app and played it for the first time in my life. Thoroughly enjoyed it. Hope there's lots of puzzles to solve in this delicious game. Almost like ken ken. Man I used to love solving all the nice difficult ones in ken ken. Hope you develop other kinds of math games we can play.

Chr. W. Apr 27, 2016     

The fastest I've ever completed a 9x9, 5 star puzzle was 22 min, with no mistakes and not using any maybes. I suppose it's possible to complete the puzzle in under 20 minutes, but a minute and a half? I guess cheaters are always going to be around. My guess is they solved the puzzle, wrote down the solution and replayed the puzzle. If there are leaderboards, take the option to replay the puzzle away. It would also be nice if the score took into account mistakes and maybes used. Maybe time penalties.

All. S. Feb 26, 2016     

I think this is one of the best apps. The only thing I would like is if each puzzle had a unique ID number, rather than the app generating random puzzles, and, if players could then call up a particular puzzle by entering it's ID number, on their own phone and play the same puzzle. Other than this, I think it's the best.

Kyl. J. Sep 23, 2017     

I really like this game. But this version is horrible about giving feedback after a game. It gives stats after a perfect game, but if you make a single pencil mark then you get a blank screen -- no feedback whatsoever. Regardless I find myself playing it regularly to try to see that simple perfect game page :S

Meg. M. Sep 2, 2014     

I love these puzzles! The random levels are fun, and I like seeing the standings. I like the automatically generated similar puzzles, and the grid placement is way better than the original - i used to always bump my cheats when i didnt need them. There are a few things that keep me from rating it a 5. I liked having the no values in the other version. I find it frustrating that if I am struggling with the puzzle, I cant easily go to another one. I miss having single operations in a puzzle. Thanx for the ap!

Jak. B. Oct 28, 2016     

I play Ken Ken all the time and decided to try a different app. The first puzzle was incorrectly populated and unsolvable. Note: not because I couldn't figure it out. I like the swipe system but it frequently gets in the way in how it's programmed.

A. G. u. Sep 20, 2016     

After finishing a game, the screen goes black and you cannot see the full puzzle.

Rya. F. May 13, 2016     

Only con: It used to be that after you finished a puzzle it would show your time and stats and there'd be a button saying "play a similar puzzle" (or something to that effect. I play the randomly generated difficulty puzzles). Now after a game is complete, it just shows the difficulty on the right side and the rest of the screen is black. It lets you scroll down the page but there's nothing there, just the difficulty stars (not even your time). The old post-game was much better :(

Mat. V. Sep 8, 2014     

Simple and easy to play. I love the random difficulty setting and ease of "play similar" button.

Sky. G. Jun 23, 2017     

Only issue I have is that I can't find where to play unfinished puzzles. I used to be able to do it but can't find it anymore. The puzzles when off WiFi restarted multiple times

A. G. u. Oct 22, 2015     

I tutor Mathematics and suggest all my students use this game to become more fluent with calculations. Fantastic resource for teachers and students especially in "Bring your own device" classrooms.

Tim. M. Jul 28, 2016     

I couldn't turn off the hints that pointed out wrong guesses as soon as I made them. I like help when learning a game, but this was just intrusive.

Dav. T. Apr 20, 2017     

Kept making phone drop wifi signal. Did 2 installs and problem kept coming back. Tried different app and it works fine.

Vid. S. Feb 17, 2016     

This is a very challenging and interesting game. I got addicted to it.

Nin. P. Nov 16, 2015     

I waste a lot of time with this app; it's very addictive.

cli. g. Mar 18, 2016     

Maybe's should be shown as pairs (at least) since that is the option rather than a value in a cell

Dou. S. Mar 28, 2016     

No ads, no permissions, good features, auto generated puzzles so you will never run out. Perfect!

Ten. A. Sep 22, 2014     

Great game but please add a confirmation box before using cheat as I have accidentally pressed it a few times.

A. G. u. Mar 27, 2017     

At end of game, game board often fails to remain visible.

ala. c. Jun 8, 2015     

are not very consistent. Personal scores are not added to the leaderboards.

Den. S. Mar 27, 2014     

Can't figure out how to quit game and get to main menu. Am I the only one? What am I missing Update: loved quick reply from the dev and I just did a quick uninstall and reinstall and I'm able to get to the main menu now :)

Dan. T. Mar 31, 2014     

Great app. Only suggestion would be to use 360 degrees for the swipe input