I’m obsessed with this puzzle. I searched for this type of puzzle after playing similar ones on airline mags. It’s great that it offers you a choice of matrix size. It really challenges your brain, especially the 9x9 grid and trying to solve it without using notations or calculators, so you have to keep it in your head. I also enjoy the random mix of math operators, some addition or multiplication only, others mix it up with subtraction and division. You definitely learn the different logical techniques and I feel my aging brain has actually gotten stronger. My one request would be that if you enter a number accidentally in a square that doesn’t conflict with existing numbers, you could remove it without having the loss applied.

Fun puzzle game! I like the multiple levels of difficulty. Some of the expert modes I’m still trying to learn how to solve. Sometimes if I have five minutes on the train I’ll do an easy Calcudoku just to bang one out since it’s still fun to play those ones. It’s nice to have the notes available and saved games to keep track of longer games. I love the new stats panel too and the achievements! It’s fun to see my solving times over history on the charts. Please keep the features coming and thank you for this great Calcudoku game!! It reminds me so much of Kenken in the newspapers that I used to play when I was younger. Glad to not have to bring along a paper since I can just play on my phone whenever I want!

I I downloaded this game for a long car drive. but I played it before the car drive and it was so much fun it also does not need Internet at least for me. in this game it’s a great puzzle I am a sixth grader and we do these in our math class and it’s just fun to have a version that I like. One thing though on the parts of the puzzle where there’s three different boxes you can only put two little notes if it’s the same number. but other than that this is a great game and you should definitely get it.

I like it a lot better than Mathdoku. It’s user interface is much friendlier. But a couple of enhancements would bring it up to 5 stars.1. Number each game and have a timer. This way you can go back to work on difficult specific games and try to beat your previous times.2. Have an “undo” button to sequentially allow you to go back and make corrections. This, to me, is more useful than the “erase” function (x) - although you should still keep this also. The undo function would allow a ‘permanent’ number to be erased, but your previous pencil marks would then be visible again.