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'; } else { signupPromoTop = ''; signupContainerTop = ''; } if (typeof signupPromoBottom !== 'undefined' && signupPromoBottom !== '') { signupContainerBottom = ''; } else { signupPromoBottom = ''; signupContainerBottom = ''; } function preroll_signup_top_handler() { trackEvent('Preroll Signup Clicked', 'Preroll Signup Top', document.title); } function preroll_signup_bottom_handler() { trackEvent('Preroll Signup Clicked', 'Preroll Signup Bottom', document.title); } '; } else { signupPromoTop = ''; signupContainerTop = ''; } if (typeof signupPromoBottom !== 'undefined' && signupPromoBottom !== '') { signupContainerBottom = ''; } else { signupPromoBottom = ''; signupContainerBottom = ''; } function preroll_signup_top_handler() { trackEvent('Preroll Signup Clicked', 'Preroll Signup Top', document.title); } function preroll_signup_bottom_handler() { trackEvent('Preroll Signup Clicked', 'Preroll Signup Bottom', document.title); } // we will define this varialbe signUpURLABTest in experiments.js var cmg_upg_days_limit = 180; var user_dst = window.location.pathname; user_dst = user_dst.replace("/", ""); if (window.location.host !== 'cmatgame.local') { if (typeof signUpURL === 'undefined' || signUpURL === '') { signUpURL = '/premium-access/b2df5a33?origin=' + user_dst; } else { signUpURL = signUpURL + '?origin=' + user_dst; } } else if (typeof signUpURLABTest === "undefined" || signUpURLABTest === null) { signUpURL = 'https://' + window.location.hostname + '/premium-access/b2df5a33?origin=' + user_dst; } else { signUpURL = signUpURLABTest; } function subscription_promo_handler() { if (typeof freeTrialUser !== 'undefined' && freeTrialUser) { trackEvent('Premium Subscription ' + subscriberLeg, 'Subscription overlay clicked', userPlayedGames); trackGoalVirtualPV('/virtual/subscription-overlay-click'); } return; } function subscriptionSignUpUrl() { var user_played_games = ''; var zeroFreeGamesLeftUsers = localStorage.getItem("zeroFreeGamesLeftUsers"); if (typeof userPlayedGames !== 'undefined' && userPlayedGames) { user_played_games = "upg=" + userPlayedGames; } else { user_played_games = "upg=0"; } if (zeroFreeGamesLeftUsers !== null && user_played_games !== '') { user_played_games = user_played_games + '&zfg=' + zeroFreeGamesLeftUsers; } else if (zeroFreeGamesLeftUsers !== null) { user_played_games = 'zfg=' + zeroFreeGamesLeftUsers; } if (typeof signUpURL !== 'undefined' && signUpURL !== null && signUpURL.indexOf('upg') === -1) { if (signUpURL.indexOf('?random_true') > -1) { signUpURL = signUpURL.replace('?random_true', ''); } if (signUpURL.indexOf('?') > -1) { signUpURL = signUpURL + '&' + user_played_games; } else { signUpURL = signUpURL + '?' + user_played_games; } } } function updateMyGamesTimeSpent(gameId) { var userActivityTime = Date.now(); //if(userActivityTime - lastKeyBoardorMouseActivityTime =2) { currentTimeInterval = 0; if(isUserValidFreeUserOrSubscriber()) { //save MyGames only for subscribers saveMyGames(gameId,0,1); currentTime = userActivityTime; } } else { currentTimeInterval = currentTimeInterval +1; saveUserProgress(); //save user progress every 20 sec } //} } function updateMyGamesTimeSpent1(gameId) { if(isUserValidFreeUserOrSubscriber()) { //save MyGames only for subscribers saveMyGamesTimeBased(gameId,0,1); } } function removePrerollAndDisplayGame() { //console.log('remove ad swf'); if (isRemoveAdSwfJWPLayer) { //remove preroll only once console.log('ad swf player already removed'); } else { console.log('removeAdSwfJWPLayer called'); //record current time to calculate how much time user spent on playing the current game currentTime = Date.now(); currentTimeInterval = 0; //call this only for timebased games //TODO save game progress /*if(!is_level_based) { setInterval(function () { updateMyGamesTimeSpent(gameId) }, 20000); } */ if(!is_level_based) { setInterval(function () { updateMyGamesTimeSpent1(gameId) }, 60000); } jQuery("#my-content").css("opacity", "1"); if(typeof intervalId != "undefined") { clearInterval(intervalId); } jQuery("#afg_container").remove(); jQuery("#afg_preloader").remove(); jQuery("#continue-container").remove(); if (!drupalSettings.cmatgame.swfembed) { //html5 game game width, game height and game type game_width = jQuery("#html5game").attr("width"); game_height = jQuery("#html5game").attr("height"); game_type = "html5"; // IE Detection and Version grabbing ie = false; var html5_game_url = jQuery("#html5game").attr("src"); var swf_game_url = jQuery("#swfgame").attr("src"); if (typeof swf_game_url !== 'undefined') { if (!checkIfFlashIsEnabled()) { //console.log('flash is undefined'); flashDetectionMessage(); } } if (typeof swf_game_url !== 'undefined' && swf_game_url.indexOf("//") === 0) { swf_game_url = window.location.protocol + swf_game_url; } else if (typeof swf_game_url !== 'undefined' && swf_game_url.indexOf("//") > 0) { swf_game_url = swf_game_url.replace("http:", window.location.protocol); } if (typeof html5_game_url !== 'undefined' && html5_game_url.indexOf("//") === 0) { html5_game_url = window.location.protocol + html5_game_url; } else if (typeof html5_game_url !== 'undefined' && html5_game_url.indexOf("//") > 0) { html5_game_url = html5_game_url.replace("http:", window.location.protocol); } if (navigator.appName == "Microsoft Internet Explorer") { ie = true; var ua = navigator.userAgent; var re = new RegExp("MSIE ([0-9]{1,}[.0-9]{0,})"); if (re.exec(ua) != null) { ieVersion = parseInt(RegExp.$1) } } if (ie && ieVersion Hey, you're using an older web browser that can't play HTML5 games like this one.

Please switch to another browser or just enjoy a different Coolmath game!' + 'div>

Get a new Internet Explorer browser from Microsoft

Please switch to another browser or just enjoy a different Coolmath game!' + 'div>

Get a new Internet Explorer browser from Microsoft

' + gameInstructions.innerHTML; } } isRemoveAdSwfJWPLayer = true; } } } display_game_progressbar(gameId); } function cmatgame_premium_subscription_game_display() { var cmatgame_subscriber = getCookie('cmg_sx'); var validSubscriber = false; if (typeof cmatgame_subscriber !== 'undefined' && cmatgame_subscriber !== null) { validSubscriber = true; } var cmatgame_free_user = getCookie('cmg_fx'); var validFreeUser = false; if (typeof cmatgame_free_user !== 'undefined' && cmatgame_free_user !== null) { validFreeUser = true; } if (typeof subscribeNowAlienClass === 'undefined' || subscribeNowAlienClass === null || subscribeNowAlienClass === '') { // if (drupalSettings.cmatgame.isSubscriptionActive == false) { // subscribeNowAlienClass = "subscribe-now-alien-subscribe"; // } else { // subscribeNowAlienClass = "subscribe-now-alien-signup"; // } } freeGamesExceeded = true; //display Ads to anonymous users the time from 7am to 13pm, display ads to anonymous users from 13pm to 11:59pm and 00 to 7am only if the user is not from New York city //TODO -->Need to add day of the week for school hours logic, day 0) { userFreeGameList = userFreeGameList.concat(freeGameNid); } else { userFreeGameList = [freeGameNid]; } localStorage.setItem("userPlayedGames", userPlayedGames); sessionStorage.setItem("userFreeGameList", JSON.stringify(userFreeGameList)); } else { freeGamesExceeded = true; } //console.log("Number of games user has played "+ userPlayedGames ); var validReferer = false; var validGameSession = false; if (userFreeGameList.indexOf(freeGameNid) > -1) { validGameSession = true; } if (ref.match("google.com") !== null || ref.match("yahoo.com") !== null || ref.match("bing.com") !== null) { validReferer = true; } subscriptionSignUpUrl(); if (!validReferer && userPlayedGames >= freeGameLimit && !validGameSession) { //subscription paywall //block anonymous users for New York City from 0-7am and 13pm to 11:59pm console.log("Free games limit exceeded and referer is not google"); clearInterval(intervalId); jQuery("#afg_container").remove(); jQuery(".title-instructions").remove(); jQuery(".body-instructions").remove(); var alreadySubscriberText = '

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PLEASE SUBSCRIBE NOW TO KEEP PLAYING

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Use your mouse to move your Chess pieces across the board. Your objective in Chess is to get a checkmate. To land a checkmate, youll need to get your opponents King into a position where it can be captured, and cannot be freed by the opponents next move.

Each piece on the board moves differently. When your piece moves intoa square that is currently occupied by an opponent's piece, you will capture that piece. Here is how each piece moves:

Dont forget: Chess is a game of logical thinking and strategic planning. Youve got to get those mental muscles moving if you want to best your opponent!

Study the board. Take a moment to consider your options before making your move. Its ideal to move to a spot that puts any of your opponents pieces under attack, but be careful you dont set yourself up for a loss!

Watch your opponents moves carefully. Stay focused and keep an eye on what kind of moves your opponent makes. Don't move into squares where they can capture your pieces, unless you see a potential advantage.Use their movements to come up with your own strategy for taking down each of their pieces. With enough practice, youll be able to predict your opponent's moves based on how the board is set up each turn.

Castleyour King early. Protecting your King is your number objective, so as soon as you see an opportunity to castle, you should. To castle, you must first clear all of the space between your King and one of your Rooks.This will open up special move options for your King. Note: Castling can only be done if neither your King and Rook have moved.

Pawns can become Queens (or most any other piece). If you can manage to get one of your pawns across the board to your opponent's back row, you can "promote" them into any other piece except a King.Simply choose the new piece you'd like them to become. You can even have "extra" Queens or other pieces!

Dont be afraid to make sacrifices. In any game, you will lose some of your pieces to your opponent. An experienced Chess player will sometimes sacrifice lower-ranking pieces in order to save those that are more useful. When deciding which pieces to sacrifice, it can help to count the points. Watch this video to learn more about the point system.

Practice makes perfect! As with any game, the more you play, the more youll learn. Chess isnt meant to be mastered after the first game. It takes years of hard work and practice. Keep on playing and maybe someday youll be a Chess master, too!

Go hereto read more about playing Chess and learn a thing or two from one of the masters.

Originally posted here:
Chess - Play Online Chess at CoolmathGames.com