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kokopu

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A JavaScript/TypeScript library implementing the chess game rules and providing tools to read/write the standard chess file formats.

www.npmjs.com/package/kokopu

yo35/kokopu

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Event = {Game with comments and NAGs} [start] -+<LONG {A comment with braces: ab{cd}ef\ghij 3 backslashes: \\\} [1w] (1w) e4 (#hm=0) $1 [1b] (1b) e6 (#hm=0) $6 $145 {This opening is called the French.} [2w] (2w) d4 (#hm=0) $14 {A comment with a degenerated \backslash} [2b] (2b) a5 (#hm=0) $146 +---+---+---+---+---+---+---+---+ | r | n | b | q | k | b | n | r | +---+---+---+---+---+---+---+---+ | | p | p | p | | p | p | p | +---+---+---+---+---+---+---+---+ | | | | | p | | | | +---+---+---+---+---+---+---+---+ | p | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | P | P | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | P | P | P | | | P | P | P | +---+---+---+---+---+---+---+---+ | R | N | B | Q | K | B | N | R | +---+---+---+---+---+---+---+---+ w KQkq - {Line}{4 plies}