Notation — Chess Terms

Notation systems and conventions: how chess moves and positions are recorded — algebraic, FEN, PGN, and the symbols that annotate a game.

Beginner

Castling Beginner: Castling moves the king two squares toward a rook, which then jumps to the square the king crossed, provided both pieces are unmoved, the path is clear, and the king neither starts in check nor passes through or lands on an attacked square.
File Beginner: A file is any of the eight vertical columns of squares on the chessboard, labeled a through h and running from one player's back rank to the other's.
Rank Beginner: A rank is one of the eight horizontal rows of squares running across the chessboard, numbered 1 to 8 from White’s side.

Blindfold Chess Intermediate: Blindfold chess is a format in which players conduct a full game without seeing the board, announcing moves verbally in algebraic notation while retaining the entire position in memory.
Blindfold Simul Intermediate: A blindfold simul is a simultaneous exhibition in which one player faces multiple opponents without seeing the boards, tracking every position entirely in memory and announcing moves verbally or by notation.
Chess Boomer Intermediate: A Chess Boomer is a player from the baby-boomer generation who typically favors classical openings, over-the-board tournaments, and pre-computer-era study habits.
En Passant Intermediate: A special pawn capture allowing a pawn to take an enemy pawn that has just advanced two squares, as if it had moved only one square.