AlphaZero is a chess engine developed by Google DeepMind that uses a deep neural network to evaluate positions and make moves.

Magnus Carlsen is the current World Chess Champion, having held the title since 2013.

The Sicilian Defense is a chess opening that begins with the moves 1. e4 e5 2. Nf3 Nc6 3. Bb5.

The King and Pawn Endgame is a chess endgame that occurs when each player has only a king and a pawn.

En Passant is a chess move that involves moving a pawn two squares forward from its starting position, capturing an opponent's pawn that has just moved two squares forward.

Castling is a chess move that involves moving the king two squares to the left or right, and then moving a rook from its original square to the square that the king passed over.

Promotion is a chess move that involves promoting a pawn to a queen, rook, bishop, or knight when it reaches the eighth rank.

Check is a chess move that involves moving the king one square in any direction.

Capture is a chess move that involves moving a piece to a square that is occupied by an opponent's piece, capturing the opponent's piece.

Check is a chess move that involves moving a piece to a square that is attacked by an opponent's piece.

Safe Move is a chess move that involves moving a piece to a square that is not attacked by any opponent's piece.

Double Check is a chess move that involves moving a piece to a square that is attacked by two or more opponent's pieces.

Triple Check is a chess move that involves moving a piece to a square that is attacked by three or more opponent's pieces.

Quadruple Check is a chess move that involves moving a piece to a square that is attacked by four or more opponent's pieces.

Quintuple Check is a chess move that involves moving a piece to a square that is attacked by five or more opponent's pieces.