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!

Really good game with questionable UI choices and a really, really bad tutorial.
If you can make it past the wacky tutorial section and figure out what the game actually wants you to do it's a fantastic game. No guessing is required and everything is logically deducible. People commenting on symmetry / multiple solutions, clicking at random and memorizing the solutions etc are all brutally wrong. :)

7/10 Spatial deduction-type puzzle
TLDR: Most players will be confused by the tutorial here. However, if you stick with the game for a while, you will understand the controls and the goals. It's quite an elegant game, both in its presentation and the gameplay.
Some explanations for new players:
1. The circles in the upper-left corner select the color for the brush, so when you click on a black shape, the shape will get the selected color.
2. The circles inside the shapes show how many neighboring shapes have those colors. E.g. 2 red circles and 1 yellow circle on a shape mean that, around this shape, some 2 are red and 1 is yellow.
3. If there are fewer circles inside the shape than there are neighboring shapes, this means that this shape just doesn't give a clue on those extra neighbors. The neighbors' color can still be deducted from circles in other shapes, not this one.
Good:
+ free
+ stylish minimalistic gfx
+ stylish minimalistic audio. Though I'd say it would still benefit from a music track, and there is none here
+ the gameplay feels both novel and familiar. If you played sudoku or minesweeper, you already know the correct approach here: excluding candidates based on color requirements in the neighbor areas
So-so:
+/- some areas have fewer dots than they have neighbor areas. Which means that a few of the neighbor areas are of "unknown" color in relation to this one. This would better be expressed maybe by a gray/black circle with a "?" on it, not just by absence of a circle
Bad:
- the onboarding is atrocious. Actually, I didn't understand anything at first and quit the game. Don't even remember why I re-launched it. Maybe the "very positive" rating encouraged me to give it another try. I guess not many players would, as you can see from the negative reviews
I'm a Steam curator, you can follow me

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.