5 stars: This game is highly based on deductive reasoning. :) The rules are easy to understand, and my favorite feature is: If any level was completed incorrectly, each rule appears on the next screen color coded with red or green (and an \
4 stars: I'm always looking for new logic/puzzle games and this is definitely a great one. My only suggestion would be a feature where you can save a check point. Then you don't have to start all the way over. It can save the dots you already know are correct/the dots you want to keep
3 stars: The game itself is great, but theres a couple features that are conspicuously missing: -the option to restart a puzzle! There's only an \
5 stars: Excellent logic game. After completing 50 levels, I can say all the puzzles can be solved with logic. Apply the third rule becomes difficult at times in trying to see which rows or columns might become identical. (So sometimes it is easier to guess and repeat tried). But anyone who says guessing is required is either lazy or hasn't figured out the needed logic to solve.
5 stars: On level 55 now and so far every level has a unique, logically deduced solution. Anyone who claims guessing is needed does not understand the very simple rules. The ads are not intrusive and most all can be exited at 5 seconds. Very good game.
5 stars: Takes a little brainpower to get the hang of it but very fun and challenging. Cannot compare to sudoku but definitely a good alternative if you're trying to avoid...