What r/puzzles is talking about this week

I've been working on this puzzle type for a few weeks and I'm curious how it feels for people who have never seen it before. There is exactly one solution and you can solve it with pure logic, no...

This thread is for promoting your own work.

Rules: put an O, N or C atom in some empty cells. An oxygen atom bonds exactly two hydrogens beside it (water molecule), a nitrogen atom bonds to three hydrogens (ammonia molecule), a carbon atoms...

My own puzzle (made with my generator, verified to have a unique solution reachable by human techniques only – cage combinations, 45 rule, innies/outies, locked candidates, pairs; no guessing...

First time I literally cannot solve one, I’ve been at it for over 30 minutes. Any ideas? I don’t want to look at the solution.

A wizard presents to you a magic glass of water. He says the glass lifts when there is an odd or greater than 11 number of balloons attached to it. He also presents to you 3 minions. The red...

I don't know if I'm missing something obvious but I just can't see what I can do next. Any help appreciated. It's one queen per region with rows, cols and immediate diagonals knocked out.

This was the daily challenge from yesterday (so no longer an ongoing contest) which took me 2.5 minutes to solve! Usually I can do them in 15-30 seconds. Just wanted to share, the 12s make it...