I enjoyed Hexcells. Did quite a few of those puzzles once I found out about the Reddit board.
Comment has been collapsed.
27 Comments - Last post 15 minutes ago by OwieczkaDollyv21
2,675 Comments - Last post 2 hours ago by kudomonster
9 Comments - Last post 3 hours ago by Formidolosus
23 Comments - Last post 4 hours ago by makki
23 Comments - Last post 4 hours ago by kimjongha
304 Comments - Last post 4 hours ago by DeliberateTaco
21 Comments - Last post 5 hours ago by Formidolosus
8,635 Comments - Last post 17 minutes ago by Swordoffury
92 Comments - Last post 26 minutes ago by TheMuzo
282 Comments - Last post 37 minutes ago by Kolisz
31 Comments - Last post 37 minutes ago by Zepy
118 Comments - Last post 53 minutes ago by Sykon
677 Comments - Last post 54 minutes ago by Mayanaise
1,581 Comments - Last post 58 minutes ago by MouseWithBeer
https://www.reddit.com/r/hexcellslevels/ has many Hexcells puzzles for free.
The normal way to play these is with Hexcells Infinite, which is in Humble Indie Bundle 17. If you did not buy the bundle, you can play for free by installing Sixcells: https://github.com/blaxpirit/sixcells#player
Comment has been collapsed.