Correspondence chess ("online" in Erikspeak) it is allowed, even encouraged.
Live chess absolutely forbids the use of any artificial aids during play. No books, no computer resources, no help, no analysis boards: nothing but your mind. Even setting up a board next to your computer to mirror the game moves is considered cheating.
Hi Everyone! I have a question, Is it consider cheating when one plays Opening moves from the WIKIPEDIA chess opening book moves? Like I sometime check the moves from there...Only a few opening moves are there...I read all the related article and discussion that which move is better or which move will bring what.. and learn too. It's all on wikipedia #TheOpeningMove.. every opening move has a name and code.. so one learns from that and study the openings..Is it a bad thing? #Cheating?