The game of Sudoku seems to have replaced the humble crossword as the king of bus travel pursuits.

What's more, the way people are playing the game is changing too, and more and more people are using their mobile devices to crunch numbers on the move. Impossible Sudoku bills itself as 'the most powerful mobile Sudoku game', and while I've not tested all of its rivals, it's certainly up there with the best of the ones I've tried.

When you first load Impossible Sudoku you'll probably fall out of your chair when you see the game board. Unlike the games you get in puzzle books this one has loads and loads of little numbers as well as bigger numbers filled in every square on the grid. It's a little daunting at first but don't worry because these are here to help you. They are actually 'auto marks' that indicate the numbers that are available to enter in a particular square based on the current state of the grid. Don't worry if it's too confusing for you because you can switch the feature off (you can't toggle auto marks, unfortunately and the change will come into effect in the next game).

There are lots of other things you can customize in Impossible Sudoku, and it's actually one of the most impressive number games I've seen in terms of its options. You can undo, redo, mark, check moves, solve the puzzle, and access all manner of statistics. There are five levels of difficulty, and you can even create your own puzzles from scratch.

The presentation of the game is pretty impressive - there's a choice of nine bright, colorful skins and the sound effects that play when you enter numbers are quite cool without being annoying.

In fact, the only thing that really lets the game down is its feeble help system. All you get is a one-paragraph description of the rules and there's nothing in the way of tips and tactics that might help beginners.

Overall though, this is a wonderful simulation of Sudoku for mobile devices.

Download Impossible Sudoku 1.05 in Softonic

The game of Sudoku seems to have replaced the humble crossword as the king of bus travel pursuits.

What's more, the way people are playing the game is changing too, and more and more people are using their mobile devices to crunch numbers on the move. Impossible Sudoku bills itself as 'the most powerful mobile Sudoku game', and while I've not tested all of its rivals, it's certainly up there with the best of the ones I've tried.

When you first load Impossible Sudoku you'll probably fall out of your chair when you see the game board. Unlike the games you get in puzzle books this one has loads and loads of little numbers as well as bigger numbers filled in every square on the grid. It's a little daunting at first but don't worry because these are here to help you. They are actually 'auto marks' that indicate the numbers that are available to enter in a particular square based on the current state of the grid. Don't worry if it's too confusing for you because you can switch the feature off (you can't toggle auto marks, unfortunately and the change will come into effect in the next game).

There are lots of other things you can customize in Impossible Sudoku, and it's actually one of the most impressive number games I've seen in terms of its options. You can undo, redo, mark, check moves, solve the puzzle, and access all manner of statistics. There are five levels of difficulty, and you can even create your own puzzles from scratch.

The presentation of the game is pretty impressive - there's a choice of nine bright, colorful skins and the sound effects that play when you enter numbers are quite cool without being annoying.

In fact, the only thing that really lets the game down is its feeble help system. All you get is a one-paragraph description of the rules and there's nothing in the way of tips and tactics that might help beginners.

Overall though, this is a wonderful simulation of Sudoku for mobile devices.

Download Impossible Sudoku 1.05 in Softonic

Have you ever dreamt of flying a Top Gun jet when you’re sat on the bus? The new game, Sky Striker aims to provide you with just that experience: a complete combat flight simulator with good graphics, tricky physics and multiple weapon options.

Having managed to get the game to run (by deleting everything else from our test phone’s memory – Sky Striker’s a real resource hog), the first thing we noticed was that it overrides your phone’s profile settings. Even on a phone set to silent, the game starts with full volume music. This irritation isn’t unique to Sky Striker but it’s an irritation all the same. Developers ought to design games which work with your phone’s current set of options, rather than completely ignoring them.

Having adjusted the volume of the music, we gingerly started a mission, read the briefing and selected a plane. Suddenly, we’re mid flight with the nose dipping violently toward the ground… a sharp tug on the joystick (pushing ‘down’ on the phone’s middle button) saved us… but for how long?!

Once you’ve got the hang of the controls, it’s time to try and enjoy the game. Sky Striker’s ‘War on Terror’ storyline, smart, quick graphics and choice of three planes makes it an exciting, addictive and enjoyable challenge. Avoiding causing civilian deaths while simultaneously dodging enemy fire and trying to attack military positions is tough at the best of times but on a mobile phone it’s really hard work. After a while of squinting at the screen, fumbling with the buttons and trying to steer this supersonic jet, you start to wonder: is this really the best sort of game to be developing for a mobile phone?

As a proof of concept, Sky Striker is an impressive feat. It combines nearly all the features of the sort of game we played 12 years ago on PCs and fits them onto a cell phone. It’s very clever but unfortunately, it’s pretty fiddly and just not that much fun to play. Added to that the bad experience with the sound and you’re left with a pretty (and not very highly recommended) memory leech.

Download Sky Striker 1.70 in Softonic