5 stars: It's a little bit of a learning curve. It's better to start with the easy puzzle to learn the pattern. Very enjoyable once you get the hang of it.
5 stars: Fun but challenging, easy to go up levels so doesn't get boring.Easy to kill 30 mins while keeping sharp.
4 stars: Great game and helpful for beginners too but there are too many adverts and they spoli the game so I had to uninstall it sadly.
4 stars: Very well planned and easy to use, the best one so far!!!!
3 stars: The option to mark possible numbers is good but the option is difficult to switch off
2 stars: Piss Poor game! Takes way too long between games because of ads. When you do get to play, it starts you off with 2 blocks and 4 numbers to each block. When you have set it to run in silent mode, ads blast you out. Normally, I do not purchase a game until I play at least 50 games. I unstained after 10 games (and after writing this review.)
2 stars: Too muc h messing around when I only want to do the puzzle
...