I like Chesstempo and chess.emrald.net[1].
Are there any others?
Edit (25.12.2020): Since at least 2018, chess.emrald.net has often not been responsive.
I like Chesstempo and chess.emrald.net[1].
Are there any others?
Edit (25.12.2020): Since at least 2018, chess.emrald.net has often not been responsive.
Chesstempo.com is the one I use. It's pretty excellent. I'd like to hear if there's a better one, though.
chessity.com is fun, and the free membership offers 20 puzzles/day and access to multiplayer games.