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stockfish

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The Stockfish chess engine in Web Assembly (WASM)

github.com/nmrugg/stockfish.js

nmrugg/stockfish.js

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/*! * Stockfish.js 16 (c) 2023, Chess.com, LLC * https://github.com/nmrugg/stockfish.js * License: GPLv3 * * Based on stockfish.wasm (c) * Niklas Fiekas <niklas.fiekas@backscattering.de> * Hiroshi Ogawa <hi.ogawa.zz@gmail.com> * https://github.com/niklasf/stockfish.wasm * https://github.com/hi-ogawa/Stockfish * * Based on Stockfish (c) T. Romstad, M. Costalba, J. Kiiski, G. Linscott and other contributors. * https://github.com/official-stockfish/Stockfish */!function(){var $t,n,t,r,e,a,o;function i(){function e(M){var i,k,T,t,n;M=M||{},(i=i||(void 0!==M?M:{})).ready=new Promise(function(e,t){k=e,T=t}),"undefined"==typeof XMLHttpRequest&&(global.XMLHttpRequest=function(){var n,r={open:function(e,t){n=t},send:function(){require("fs").readFile(n,function(e,t){r.readyState=4,e?(console.error(e),r.status=404,r.onerror(e)):(r.status=200,r.response=t,r.onreadystatechange(),r.onload())})}};return r}),i.postCustomMessage=function(e){for(var t of v.ya)t.postMessage({cmd:"custom",userData:e})},i.queue=(n=[],{get:async function(){return!B&&0<n.length?n.shift():await new Promise(function(e){return t=e})},put:function(e){t?(t(e),t=null):n.push(e)},process:function(){t&&n.length&&t(n.shift())}}),i.onCustomMessage=function(e){B?q.push(e):i.queue.put(e)};var B,e,q=[],N=(i.pauseQueue=function(){B=!0},i.unpauseQueue=function(){var e=q;B=!(q=[]),e.forEach(function(e){i.queue.put(e)}),i.queue.process()},i.postMessage=i.postCustomMessage,[]),W=(i.addMessageListener=function(e){N.push(e)},i.removeMessageListener=function(e){0<=(e=N.indexOf(e))&&N.splice(e,1)},i.print=i.printErr=function(e){if("Blocking on the main thread is very dangerous, see https://emscripten.org/docs/porting/pthreads.html#blocking-on-the-main-browser-thread"!==e){if(0===N.length)return console.log(e);for(var t of N)t(e)}},i.terminate=function(){v.Ra()},i.__IS_NON_NESTED__=!0,{});for(e in i)i.hasOwnProperty(e)&&(W[e]=i[e]);var H=[],Y="./this.program";function G(e,t){if(0!==e)throw t}var r,V,z="object"==typeof window,o="function"==typeof importScripts,s="object"==typeof process&&"object"==typeof process.versions&&"string"==typeof process.versions.node,f=i.ENVIRONMENT_IS_PTHREAD||!1,a="";function Q(e){return i.locateFile?i.locateFile(e,a):a+e}if(s){var a=o?require("path").dirname(a)+"/":__dirname+"/",X=function(e,t){return r=r||require("fs"),e=(V=V||require("path")).normalize(e),r.readFileSync(e,t?null:"utf8")},K=function(e){return re((e=(e=X(e,!0)).buffer?e:new Uint8Array(e)).buffer),e};1<process.argv.length&&(Y=process.argv[1].replace(/\\/g,"/")),H=process.argv.slice(2),process.on("uncaughtException",function(e){if(!(e instanceof S))throw e}),process.on("unhandledRejection",y),G=function(e,t){if(_e())throw process.exitCode=e,t;process.exit(e)},i.inspect=function(){return"[Emscripten Module object]"};try{d=require("worker_threads")}catch(e){throw console.error('The "worker_threads" module is not supported in this node.js build - 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