Notation, Recording & Chess Data12 guides

Notation, Recording & Chess Data

Learn how chess positions and games are represented, from algebraic notation and scoresheets to FEN, PGN, move disambiguation, engine coordinates, annotations, and structured chess data.

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Learn how chess positions and games are represented, from algebraic notation and scoresheets to FEN, PGN, move disambiguation, engine coordinates, annotations, and structured chess data.

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This domain brings together 12 in-depth Chess Guides that explain the core ideas, patterns, decisions, and practical skills in this area. Use the guide index below to move from the broad framework into the exact topic you want to study.

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Chess concepts rarely work in isolation. The articles in this domain are grouped here so you can see how the topics reinforce one another, revisit prerequisites when needed, and continue into closely related ideas without losing the larger strategic context.

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Articles in Notation, Recording & Chess Data

12 guides

Chess GuideChess Algebraic Notation: How to Read & Write MovesLearn how algebraic chess notation represents moves, captures, checks, castling, promotion, en passant and results, including the important differences between FIDE scoresheet notation and PGN SAN.Chess GuideStandard Algebraic Notation (SAN): Move Construction & DisambiguationLearn how to construct exact SAN move strings, resolve ambiguous moves by file or rank, handle captures and promotions, and distinguish legal-move ambiguity from geometric reach.Chess GuideChess Move Numbers, Variations & Annotation SymbolsLearn how chess notation represents move numbers, Black-to-move fragments, main lines, nested variations, comments, move annotations, evaluation symbols and PGN NAGs.Chess GuideChess Scoresheets: Recording & Transcribing a GameLearn how chess scoresheets record moves and game information, how human notation differs from PGN, and how to reconstruct and transcribe a paper or electronic game record reliably.Chess GuideFEN Explained: The Six Fields of a Chess PositionUnderstand every field in a FEN string: piece placement, side to move, castling rights, en-passant target, halfmove clock and fullmove number, plus what each field can and cannot tell you.Chess GuideHow to Build, Read & Validate a FEN StringLearn a reliable diagram-to-FEN and FEN-to-board workflow, then validate FEN syntax, state consistency and chess legality without confusing those three different checks.Chess GuidePGN Explained: Tags, Metadata & MovetextLearn the structure of Portable Game Notation (PGN): tag pairs, the Seven Tag Roster, supplemental metadata, SAN movetext, comments, results and non-standard starting positions.Chess GuidePGN Variations, Comments, Import/Export & Complete RecordsLearn how complete PGN records encode variations, comments, NAGs and non-standard starts, why PGN import is more tolerant than canonical export, and where interoperability can fail.Chess GuideEPD Chess Format: Position Tests, Opcodes & DataLearn what Extended Position Description (EPD) is, how its four-field position core relates to FEN, how opcodes attach tasks and metadata, and why EPD is useful for test suites and chess tooling.Chess GuideUCI Chess Move Format & Engine Coordinate NotationLearn how UCI represents chess moves with source and destination coordinates, including promotions, castling and the 0000 null-move token, and how UCI move strings differ from SAN.Chess GuideChess Data Formats: ECO, Diagrams, SAN, FEN, PGN & UCICompare the main ways chess information is represented and choose the right format for a move, position, full game, engine command, opening classification or instructional diagram.Chess GuideChess Notation & Data Practice: SAN, FEN, PGN, EPD & UCITest your ability to move between a chessboard and its written representations with practical SAN, FEN, PGN, EPD, UCI, scoresheet and format-selection exercises.