Class Game

Chess game, with the move history, the position at each step of the game, the comments and annotations (if any), the result of the game, and some meta-data such as the name of the players, the date of the game, the name of the tournament, etc...

Hierarchy

  • Game

Constructors

constructor

Methods

annotator ascii clearHeaders date dateAsDate dateAsString eco event finalFEN finalPosition findById fullRound initialFEN initialFullMoveNumber initialPosition mainVariation nodes opening openingSubVariation openingVariation playerElo playerName playerTitle plyCount pojo result round site subRound subSubRound termination variant fromPOJO

Constructors

constructor

Methods

annotator

  • Get the name of the annotator.

    Returns undefined | string

  • Set the name of the annotator.

    Parameters

    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

ascii

  • Return a human-readable string representing the game. This string is multi-line, and is intended to be displayed in a fixed-width font (similarly to an ASCII-art picture).

    Returns string

clearHeaders

  • Clear all the headers (player names, elos, titles, event name, date, etc...).

    The result header is reseted to its default value. The initial position and moves are not modified.

    Returns void

date

  • Get the date of the game.

    Returns undefined | DateValue

  • Set the date of the game.

    Parameters

    • value: undefined | Date | DateValue

      If undefined, the existing value (if any) is erased.

    Returns void

  • Set the date of the game.

    If the month and/or the day of month are missing, the date of the game will be partially defined (see DateValue for more details regarding partially defined dates).

    Parameters

    • year: number
    • Optional month: number
    • Optional day: number

    Returns void

dateAsDate

  • Get the date of the game as a standard JavaScript Date object.

    If the day of month is undefined for the current game, the returned Date object points at the first day of the corresponding month. If neither the day of month nor the month are undefined for the current game, the returned Date object points at the first day of the corresponding year.

    Returns undefined | Date

dateAsString

  • Get the date of the game as a human-readable string (e.g. 'November 1955', 'September 4, 2021').

    Parameters

    • Optional locales: string | string[]

      Locales to use to generate the result. If undefined, the default locale of the execution environment is used. See Intl documentation for more details.

    Returns undefined | string

eco

  • Get the ECO code.

    Returns undefined | string

  • Set the ECO code.

    Parameters

    • value: undefined | string

      If undefined, the existing value (if any) is erased. Must be a valid ECO code (from 'A00' to 'E99').

    Returns void

event

  • Get the event.

    Returns undefined | string

  • Set the event.

    Parameters

    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

finalFEN

  • FEN representation of the chess position at the end of the game.

    The fifty-move clock and full-move number are set according to the move history in the string returned by this method.

    Returns string

finalPosition

  • Chess position at the end of the game.

    Returns Position

findById

  • Return the node or variation corresponding to the given ID (see Node.id and Variation.id to retrieve the ID of a node or variation).

    Returns

    undefined if the given ID does not correspond to an existing Node and Variation.

    Parameters

    • id: string

    Returns undefined | Node | Variation

fullRound

  • Get the round, sub-round and sub-sub-round as a human-readable string, the 3 components being separated by dot characters.

    Returns undefined | string

initialFEN

  • FEN representation of the chess position at the beginning of the game.

    The fifty-move clock and full-move number are set according to the move history in the string returned by this method.

    Returns string

initialFullMoveNumber

  • Full-move number at which the game starts.

    Returns number

initialPosition

  • Get the initial position of the game.

    Returns Position

  • Set the initial position of the game.

    Parameters

    • initialPosition: Position
    • Optional fullMoveNumber: number

      1 by default

    Returns void

mainVariation

nodes

  • Return the nodes corresponding to the moves of the main variation.

    Parameters

    • withSubVariations: boolean = false

      If true, the nodes of the sub-variations are also included in the result.

    Returns Node[]

opening

  • Get the name of the opening.

    Returns undefined | string

  • Set the name of the opening.

    Parameters

    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

openingSubVariation

  • Get the name of the opening sub-variation.

    Returns undefined | string

  • Set the name of the opening sub-variation.

    Parameters

    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

openingVariation

  • Get the name of the opening variation.

    Returns undefined | string

  • Set the name of the opening variation.

    Parameters

    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

playerElo

  • Get the elo of the player corresponding to the given color.

    If defined, the returned value is guaranteed to be an integer >= 0.

    Parameters

    Returns undefined | number

  • Set the elo of the player corresponding to the given color.

    Parameters

    • color: Color
    • value: undefined | number

      If undefined, the existing value (if any) is erased. Must be an integer >= 0.

    Returns void

playerName

  • Get the name of the player corresponding to the given color.

    Parameters

    Returns undefined | string

  • Set the name of the player corresponding to the given color.

    Parameters

    • color: Color
    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

playerTitle

  • Get the title of the player corresponding to the given color.

    Parameters

    Returns undefined | string

  • Set the title of the player corresponding to the given color.

    Parameters

    • color: Color
    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

plyCount

  • Number of half-moves in the main variation.

    For instance, after 1.e4 e5 2.Nf3, the number of half-moves if 3 (2 white moves + 1 black move).

    Returns number

pojo

  • Return the POJO representation of the current Game. To be used for JSON serialization, deep cloning, etc...

    Returns GamePOJO

result

round

  • Get the round.

    Returns undefined | number

  • Set the round.

    Parameters

    • value: undefined | number

      If undefined, the existing value (if any) is erased. Must be an integer >= 0.

    Returns void

site

  • Get where the game takes place.

    Returns undefined | string

  • Set where the game takes place.

    Parameters

    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

subRound

  • Get the sub-round.

    Returns undefined | number

  • Set the sub-round.

    Parameters

    • value: undefined | number

      If undefined, the existing value (if any) is erased. Must be an integer >= 0.

    Returns void

subSubRound

  • Get the sub-sub-round.

    Returns undefined | number

  • Set the sub-sub-round.

    Parameters

    • value: undefined | number

      If undefined, the existing value (if any) is erased. Must be an integer >= 0.

    Returns void

termination

  • Get the reason of the conclusion of the game. Examples of possible values:

    • 'normal': game terminated in a normal fashion,
    • 'time forfeit': loss due to losing player's failure to meet time control requirements,
    • 'adjudication': result due to third party adjudication process,
    • 'death': losing player called to greater things, one hopes,
    • 'emergency': game concluded due to unforeseen circumstances,
    • etc...

    This list is not exhaustive and any string is valid value for this field.

    Returns undefined | string

  • Set the name of the opening sub-variation.

    Parameters

    • value: undefined | string

      If undefined, the existing value (if any) is erased.

    Returns void

variant

Static fromPOJO

  • Decode the POJO passed in argument, assuming it follows the schema defined by GamePOJO.

    Throws

    InvalidPOJO if the given object cannot be decoded, either because it does not follow the schema defined by GamePOJO, or because it would result in an inconsistent game (e.g. if it contains some invalid moves).

    Parameters

    • pojo: unknown

    Returns Game

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