Not always, but frequently the app loses your game if you stop to take a phone call or look at something else. I was almost finished with the daily expert puzzle this morning that I’d spent over 45 minutes on when I got a phone call. When I went back to the app I was presented with the same puzzle, totally blank. Aggravating. I certainly wasn’t going to start all over again.

First, great game! The ‘hard’ levels are actually hard and challenging, which is perfect for waking up with my morning cup of coffee. And the ads between games are short which allows you to play on fairly quickly.2 requests to make this a 5 star game. First please give the game a landscape orientation option. When I’m traveling this would allow me to set my iPad on a tray table and enjoy the game instead of holding it in my hand all the time.Second, please please please stop accepting banner ads that have movement! I don’t mind a banner ad at the bottom of my screen while I play, but lately there is a slots game you’re allowing to advertise and it demo rolls the slots every 2-3 seconds. The constant movement is incredibly distracting and causes my timed games to be much slower! Please make your banner ads static images.Those 2 things and thus becomes the absolute best version of killer sudoku in the App Store!

I enjoy the game but there is a problem with the advanced notes feature. If I return to a partially completed game, the notes will not be the same as when I left. There will be numbers there that I had previously deleted. Same with getting a hint. I once made the mistake of getting one and it completely filled on all of the numbers on the notes wiping out the progress I had made.I have taken to photographing what the board looks like when I leave so I can return it to that state when I resume the game. There has to be a better way.

I really enjoy this game and don’t usually have problems. Recently the game has been erasing my progress on the 6 x 6 Hard. I’m on level 500 and the games has began erasing my completion on the first levels. Even when I redo the levels it won’t say I’ve completed it still, and at first it was only levels 1-2, but now it’s says I haven’t completed levels 1-7. It’s a little annoying as well as the game randomly opening the App Store repeatedly with different apps to download when I don’t click on ads. Other than that it’s an enjoyable game.