They say you can finish the puzzles without guessing but after hours I can confirm that is bullshit.

More of the original Hexcells with an added mechanic and harder puzzles. Very well done. I wish there were more puzzles to play overall. Definitely a better Minesweeper.

Couldn't get enough of it.

This is a really nice extension to the first game that adds a lot of challenge. The first few levels require techniques to solve that the first game took several chapters to introduce. As such, it might be one of the few abstract puzzle game series that I'd recommend playing in order? Solving these more difficult puzzles was supremely satisfying, but I might have bounced off of it without the gentler coaching of the first game.

Improves on eveything the original Hexcells did.

second addition to the series, just as fun as the first