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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 = {Smothered checkmate} Variant = {black-king-only} +---+---+---+---+---+---+---+---+ | r | | | | | | | k | +---+---+---+---+---+---+---+---+ | | | | | | p | p | p | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | N | | +---+---+---+---+---+---+---+---+ | | | Q | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ w - - (black-king-only) [start] -+<LONG [1w] (1w) Nxf7+ (#hm=0) [1b] (1b) Kg8 (#hm=1) [2w] (2w) Nh6+ (#hm=2) [2b] (2b) Kh8 (#hm=3) [3w] (3w) Qg8+ (#hm=4) [3b] (3b) Rxg8 (#hm=0) [4w] (4w) Nf7# (#hm=1) +---+---+---+---+---+---+---+---+ | | | | | | | r | k | +---+---+---+---+---+---+---+---+ | | | | | | N | p | p | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ | | | | | | | | | +---+---+---+---+---+---+---+---+ b - - (black-king-only) {White wins}{7 plies}