Calcudoku · Math Logic Puzzles

My nightime treat, a few quick games to tire my brain.

Simple design with sensible options to suit playing style. Free to play and the adverts are not too intrusive. Nicely done.

The 9*9 is very challenging. Good for the brain!

I'm addicted too this game it's so good 😍. Download this game you'll getvbetter at maths. This game is good for all ages at school

I’ve been playing this for a couple of years now. It’s more fun than Killer Sudoku and much more fun than the basic Sudoku. I always do the 9x9 as that’s what I’m used to as well as being the most challenging. I’d like to be offered a choice between all multiply, all adding, or various sorts of mixtures. I get on best where all cells are multiply or a complete mix of + - x and / (oops, my iPhone lacks the proper symbol for division). Today for the first time ever I abandoned a puzzle as I couldn’t solve it after 3 days. Mostly I do 2 or 3 puzzles a day but that one had me beat. It was a mix of + and - , which I’ve always found the hardest. But that hasn’t put me off in the least and I continue to enjoy this great brain workout.

Love the challenge of this game. Lots of levels to choose from - suitable for a wide range of ages and ability levels. Good fun!!

Very similar to Killer Sudoku but far simpler. I play the 9*9 grid as that’s what I’m used to, and I find this one a bit easier without the standard Sudoku layout to be honest. I like the Check option too. An all round absorbing game to get the old cogs working 😃👍

Such a shame you are invaded by irrelevant adverts

Good app. Ads not intrusive. Only 4 stars rather than 5 because you can’t choose the difficulty level for the grids and the 9x9s are relatively simple, so you have nowhere to go after that.

Great fun and excellent mental workout from r each day with coffee!