Chess.com

Learn why castling is crucial for king safety and the conditions required to make this special move in chess.

How do I castle on Chess.com?

Learn about the special pawn move that many new players mistake for a bug or illegal move!

What is 'En Passant'? It’s not an illegal pawn move!

Wondering why your game ended in Stalemate? Learn what causes it and how to use it to your advantage!

What is stalemate?

What does ‘insufficient mating material’ mean?

I got a draw by repetition. How did that happen?

Learn about all the ways a chess game can end in a draw on Chess.com, including stalemate, repetition, and the 50-move rule.

How do draws work?

Learn to identify checkmates and recognize tricky situations, like pinned pieces, to know when the game is truly over.

Checkmate with a pinned piece? What's going on?

Learn what PGN and FEN are and how to get them from any game on Chess.com.

What are PGN & FEN?

Learn what ECO codes are, how the Encyclopedia of Chess Openings classifies chess openings, and where to browse them on Chess.com.

What does "ECO" mean?

What do the numbers and letters like 'Nc3' mean?

What is the number next to my name? What does it mean?

How can I turn my pawn into a queen?

Learn how to allow takebacks in Daily Chess games on Chess.com and when you can use this feature during your matches.

Can I take back a bad move?

Learn where to explore and study chess openings on Chess.com, and find the one that best matches your playing style!

What are chess openings?

Find out what the numbers mean when evaluating chess positions.

Computer evaluation numbers on Chess.com (like +2.25)

Learn the basic rules of chess, explore beginner lessons, and discover how regular practice can help you improve your game.

How can I learn the rules of chess?

Learn how to find and explore Chess.com’s glossary of chess terms to easily understand key concepts and definitions.

Where can I look up chess terminology?

Learn the rules of chess, key terms, and how basic concepts like castling and stalemates work.

Rules & Basics

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