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Portable Game Notation (PGN) is a standard plain text format for recording chess games (both the moves and related data), which can be read by humans and is also supported by most chess software. This article uses algebraic notation to describe chess moves.
Unicode 15.1 specifies a total of 110 spread across two blocks. The standard set of chess pieces—king, queen, rook, bishop, knight, or pawn, with white and black variants—were included in the block Miscellaneous Symbols.
On certain Internet chess servers, such as Chess.com and Lichess, this kind of move is marked as an "inaccuracy", denoting a weak move, appearing more regularly than with most annotators. A sacrifice leading to a dangerous attack that the opponent should be able to defend against if they play well may receive a "?!".
The UCI has been modified to play some chess variants. Some of these are: [5] Universal Shogi Interface (USI), a dialect for shogi; [6] Universal Chinese Chess Interface (UCCI), a dialect for xiangqi. [7] Each of these protocols may also define variants of Portable Game Notation (PGN) and Forsyth–Edwards Notation (FEN). The XBoard CECP is ...
Lichess (/ ˈ l iː tʃ ɛ s /; LEE-ches) [3] [4] is a free and open-source Internet chess server run by a non-profit organization of the same name. Users of the site can play online chess anonymously and optionally register an account to play rated games.
Online chess is chess that is played over the Internet, allowing players to play against each other. This was first done asynchronously through PLATO and email in the 1970s. In 1992, the Internet Chess Server facilitated live online play via telnet, and inspired several other telnet-based systems around the world. Web-based platforms became ...
The object of the game is to checkmate the opponent; this occurs when the opponent's king is in check, and there is no legal way to get it out of check. In casual games, it is common to announce "check" when putting the opponent's king in check, but this is not required by the rules of chess and is usually not done in tournaments. [5]
The script is a roughly 720 lines of easy to read JS. in order to use it on enwiki it will have to be included from common.js. it can be viewed here: he:Mediawiki:common.js/pgn.js. discussions in chessclub here: Wikipedia talk:WikiProject_Chess#PGN_viewer. discussion in WP:VPT here: Wikipedia:Village pump (technical)/Archive 104#Display chess ...