RYB

Honestly, ignore the negative reviews. The game is pretty much Sudoku, and all the negative reviews effectively are saying they don't like the Sudoku-style of gaming. So why play a Sudoku game if you don't like Sudoku?
There is no guessing needed at all. You can work out pathways and deduce which pieces must or cannot be certain colors. Unlike Sudoku, not all clues are given right away - which is what the game immediately tells you - and it seems most of the negative reviewers forget that. It's an incremental Sudoku - which is the minesweeper aspect (clicking a tile in minesweeper reveals more information, you don't immediately know the solution after just one click).
One thing I do agree with is that solving by guessing is too easy and not really punished. But that's the same for any puzzle, isn't it? The reward is challenging yourself.
This is a very fun game, and the fact it's free-to-play makes it well worth it!

Some are quite difficult and hard to read, but all are really enjoyable puzzles.
Everything can be solved logically. If you think you have to guess, then maybe you don’t fully understand the rules for some symbols- that happened to me with the crossed-out dots.
If you enjoy challenging puzzles, then give this game a try!

I didn't finish it because there are no achievements, and I was just not in the right mindset to finish it without a those sweet dopamine digital rewards.
I do see it's a well made game though overall, and it could be fun trying to solve it all sometime in the future.
It is missing one feature that would upgrade the puzzles a lot. A "pencil mode". If we're already playing a video game and not doing this with pen and paper, help us out and don't force us to play out scenarios in our heads, and let us mark colors to easily see why choosing those would lead to a contradiction eventually.

Great logic puzzle in the relative same style as sudoku. Can you work through this by just guessing blindly? yes. Is it much more fun and rewarding to actually think about what you can do with the clues given? Absolutely. Gets the mental gears turning really well and though some kind of mark up system (something like most sudokus small numbers you can add as guesses) would have probably saved me some time as i had to rethink certain sections, but still nicely doable if you're willing to challenge yourself.

I got so totally sucked in till I finished it. Both this game and the 20 mazes game where so great, I can't wait for whatever comes next! :D

Fun puzzle game, pretty difficult without being too frustrating. Levels aren't particularly wrong, and making two mistakes causes the level to restart, which is fine. New mechanics are added without explicitly telling the player what they are, so you can see what they do. The best way I can describe this game is that it's like Minesweeper with colors.
I have one gripe with this game, however.
"Not all circles are given."
I heavily dislike having incomplete information from a tile. Sometimes you get a tile with two yellow circles, and there are indeed two yellow tiles next to it. But sometimes you'll get a tile with only one yellow circle, and there will still be two tiles next to it. I understand that the idea is that you have to use information from other tiles to figure out which adjacent one is supposed to have the color, but it can feel like trial-and-error in some levels.
Barring those ambiguous levels, the majority of the game is largely enjoyable and the puzzles don't get dull as new mechanics/colors are introduced regularly.

A quite good little puzzler, solved every puzzle, and I can promise that A) the reviews stating there are insufficient tutorials have NO IDEA what they are on about, every mechanic literally has a multi-step tutorial puzzle with rules that are then followed exactly, and B) there are no 50/50s or puzzles with multiple solutions possible, at least not that I noticed, if it looks like there is, extrapolate, there WILL be a contradiction that breaks one path.
Only thing that could really improve the game is a way to sketch on the puzzles without putting in inputs, I did a lot of my thinking with the snipping tool haha
Quite incredible time for the price of free!