Sudoku has taken the world by storm, to use a cliche - it has everyone, gamers or not, playing. It has attracted the puzzle community, the bored commuter classes, and even the general gaming world.

Sudoku is an elegant form of puzzle, it involves numbers, but it doesn’t feel like maths - its a logic puzzle, and a well done Sudoku grid can be a joy to solve. The aim is to arrange the numbers 1 to 9 in a 9x9 grid so that the same number is not seen twice in any row, column, or 3x3 grid. It sounds easy, and the idea is simple enough, but depending upon how many numbers you are given at the start it can be a pretty interesting, and sometimes frustrating challenge.

Its also perfect for a mobile game, and once again, Breakpoint have converted it beautifully.

Breakpoints' version of Sudoku comes with a variety of difficulty levels, a high-score system for each level, and a solver which will solve those pesky newspaper or magazine grids for you very quickly.

In the unlikely event that you have not played Sudoku before, there is a tutorial that will explain the basics of the game to you, and also explain to you what you have done wrong, should you make a mistake. The tutorial is given to you by the games friendly, typically eccentric mathematician (seen below).

It is very easy to pick up the rules of Sudoku, and the interface that Breakpoint have designed makes it a joy to play.

Move around the grid with your phones up/down/left/right buttons or dpad, and then use the number keys to select what number you would like to put in the grid. If the number can go there, it will show in a faded grey, if you’ve made an illegal move, that number, and its partner on that row, column or section, will show up in red.

As well as marking numbers in for real, you can also add ‘small’ numbers for possibilities, similar to the arrangements in magazines (or your own paper scratchings). You can also highlight numbers on the grid, which shows them up in a bright blue, making it easy to spot where numbers are missing. Corrections and notes are much easier this way than with pen and paper.

The entire design is friendly, fun, and easy to use, and after you have played Sudoku this way, I doubt you will ever want to go back to playing on paper. With mobile Sudoku you have an almost endless supply of grids to play whenever and wherever you want.

To conclude, this is a great adaptation of an already great puzzle, and once again, the kind of thing that we need to see more of in mobile gaming - keep it simple, keep it fun.