This daily puzzle is provided by Lichess.org.
Lichess is free website and yet provides a whole range of tools, software and an engine. We use it as our platform for online chess.
1) For our members attending junior coaching, the sections on
https://lichess.org/training/coordinate the coordinates of the board which is the start of being able to write down your moves,
https://lichess.org/learn learning the rules and
https://lichess.org/practice starting to practice the basic techniques
are all invaluable!
2) For all our members the tools are very useful!
https://lichess.org/analysis Analyse a game/position that you have just imported/created
https://lichess.org/editor Create a position from the middle of a game
https://lichess.org/paste Import a game