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<!-- Source https://github.com/Dave2ooo/F2LTrainer -->
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Google Tag Manager -->
<!-- <script>
(function (w, d, s, l, i) {
w[l] = w[l] || [];
w[l].push({ "gtm.start": new Date().getTime(), event: "gtm.js" });
var f = d.getElementsByTagName(s)[0],
j = d.createElement(s),
dl = l != "dataLayer" ? "&l=" + l : "";
j.async = true;
j.src = "https://www.googletagmanager.com/gtm.js?id=" + i + dl;
f.parentNode.insertBefore(j, f);
})(window, document, "script", "dataLayer", "GTM-P5XPQWK5");
</script> -->
<!-- End Google Tag Manager -->
<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-ENTD55V4SX"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
}
gtag("js", new Date());
gtag("config", "G-ENTD55V4SX");
</script>
<!-- End Google tag (gtag.js) -->
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta
name="description"
content="Learn and practice all F2L cases you need to know. Improve your solving times by finding better and faster algirithms."
/>
<meta name="keywords" content="cubing,rubiks,cfop,f2l,learning,practicing,training" />
<meta name="author" content="Dave2ooo" />
<!-- Cache for 12 hours -->
<meta http-equiv="Cache-control" content="public, max-age=43200" />
<title>F2L Trainer - Rubiks Cube</title>
<link rel="icon" href="images/full_cube.svg" />
<link rel="stylesheet" href="style.css" />
<!-- Structured Data -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "SoftwareApplication",
"name": "F2L Trainer",
"applicationCategory": "EducationalApplication",
"operatingSystem": "Internet Browser"
}
</script>
</head>
<body>
<!-- POPUP-CONTAINER START -->
<!-- Info -->
<!-- Welcome Container -->
<dialog id="welcome-container" class="popup-container">
<!-- <h1>Welcome to my F2L Trainer</h1> -->
<!-- <h1>How to use the F2L Trainer</h1> -->
<h2>How to use the Trainer</h2>
<p>
<!-- Learn and practice all F2L cases you need to know. Improve your knowledge by finding better and faster
algirithms. Use this trainer to practice and reduce your Rubiks Cube solving times. -->
</p>
<div class="div-centering">
<img src="./images/instructions_select_page.png" alt="Select Page Instructions" class="img-instructions" />
</div>
<div class="update-cancel-buttons">
<input type="button" class="btn-overlay" onclick="closeOverlays()" value="To the Trainer" />
</div>
</dialog>
<!-- Info Container -->
<dialog id="info-container" class="popup-container">
<h1>Here some info</h1>
<h2>How to use the F2L Trainer</h2>
<p>1. Press the image of a <b>cube</b> to change their status to</p>
<ul>
<li class="color-transparent">UNLEARNED</li>
<li class="color-yellow">LEARNING</li>
<li class="color-green">FINISHED</li>
</ul>
<p>
2. Press
<img src="./images/edit.svg" alt="Edit" class="img-inline" loading="lazy" />
to select your preferred algorithm.<br />
3. Press <span class="border-inline">Train</span> to switch to train mode.<br />
4. Press
<img src="./images/settings.svg" alt="Setings" class="img-inline" loading="lazy" />
to set your preferences.<br />
5. <b>Scramble</b> your cube according to the displayed scramble.<br />
6. <b>Solve</b> the first two layers fully.
</p>
<!-- If load=lazy and website opened on mobile (chrome): The YouTube video will not be displayed -->
<iframe
id="iframe-video"
title="YouTube video player"
frameborder="0"
allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
referrerpolicy="strict-origin-when-cross-origin"
allowfullscreen
></iframe>
<!-- src="https://www.youtube-nocookie.com/embed/EQbZvKssp7s?si=tEuX7PxLo8i5UdiT&start=20" -->
<!-- <img id="thumbnail-button" src="./images/thumbnail.png" alt="Yideo" onclick="insertUrltoIframe()" /> -->
<!-- <button onclick="insertUrltoIframe()">URL</button> -->
<h2>Hotkeys</h2>
<p>Hotkeys only work in <b>Train</b> mode</p>
<ul>
<li>Space - Next Scramble</li>
<li>Right Arrow - Get Hint</li>
<li>C (double press) - Clear all Data</li>
</ul>
<h2>Further Help</h2>
<p>
Feel free to create an issue on
<a href="https://github.com/Dave2ooo/F2LTrainer" target="_blank" rel="noopener noreferrer">Github</a>
if you need <b>help</b>, have ideas for <b>improvement</b> or find any <b>bugs</b>.
</p>
<h2>Acknowledgment</h2>
<p>
Thanks to
<a href="https://github.com/cubing/cubing.js" target="_blank" rel="noopener noreferrer">cubing.js</a> for the
interactive Rubiks cube.
</p>
<div class="update-cancel-buttons">
<form method="dialog">
<button type="button" class="btn-overlay" id="btn-close-info" onclick="closeOverlays()">
Close
<img src="./images/cancel.svg" alt="Close" class="side-img" title="Close" loading="lazy" />
</button>
</form>
</div>
</dialog>
<!-- Edit Algorithm -->
<dialog id="editalg-container" class="popup-container">
<div id="editalg-img-container">
<img id="editalg-img" src="./images/basic_cases/right/F2L1.svg" alt="Image of Case" loading="lazy" />
</div>
<label class="checkbox" for="checkboxIdenticalAlgId">
<input
type="checkbox"
class="checkbox__input"
name="checkboxIdenticalAlg"
id="checkboxIdenticalAlgId"
onchange="syncLeftRightAlgSelection()"
/>
<div class="checkbox__box"></div>
Same alg for left and right (mirrored)
</label>
<!-- <div id="editalg-text">Choose algorithm</div> -->
<div class="switch-container">
<div class="switch">
<input type="radio" id="switch-left-id" name="switch" onchange="switchLeftRight()" />
<label for="switch-left-id">Left</label>
<input type="radio" id="switch-right-id" name="switch" onchange="switchLeftRight()" checked />
<label for="switch-right-id">Right</label>
<div class="indicator"></div>
</div>
</div>
<div id="editalg-list">
<!-- <div class="editalg-listentry">U (R U' R)</div> -->
<!-- <div class="editalg-listentry">R' F R F'</div> -->
<!-- <div class="editalg-listentry">U2 (R U2 R')</div> -->
<!-- <div class="editalg-listentry">y' U f R' f'</div> -->
</div>
<div class="editalg-listentry" onclick="customAlgSelected()">
<input type="text" placeholder="Enter Custom Algorithm" id="editalg-customalg" />
</div>
<div class="update-cancel-buttons">
<button type="button" class="btn-overlay" onclick="updateAlg()">
Confirm
<img src="./images/confirm.svg" alt="Confirm" class="side-img" title="Confirm" loading="lazy" />
</button>
<button type="button" class="btn-overlay" onclick="closeOverlays()">
Cancel <img src="./images/cancel.svg" alt="Close" class="side-img" title="Close" loading="lazy" />
</button>
</div>
</dialog>
<!-- Loading Screen -->
<div id="loading-screen">
<h1>LOADING</h1>
<span class="loader"></span>
</div>
<!-- Train Settings -->
<dialog id="train-settings-container" class="popup-container">
<h2>Export</h2>
<!-- <p>Use this URL to transfer your selected cases to other devices.</p> -->
<input type="text" id="input-export" value="https://f2l-trainer.top" readonly disabled />
<div class="update-cancel-buttons">
<button type="button" class="btn-overlay" onclick="copyUTLtoClipboard()">Copy to clipboard</button>
</div>
<h2>Train settings</h2>
<div id="div-algs-to-learn" class="div-checkbox-container-container">
<!-- Checkbox: Unlearned, Learning, Finished -->
<div class="checkbox-container">
<h3>Status</h3>
<label class="checkbox" for="checkboxUnlearnedId">
<input type="checkbox" class="checkbox__input" name="checkboxUnlearned" id="checkboxUnlearnedId" />
<div class="checkbox__box"></div>
Unlearned
</label>
<label class="checkbox checkbox-learning" for="checkboxLearningId">
<input type="checkbox" class="checkbox__input" name="checkboxLearning" id="checkboxLearningId" />
<div class="checkbox__box checkbox__box_learning"></div>
Learning
</label>
<label class="checkbox checkbox-finished" for="checkboxFinishedId">
<input type="checkbox" class="checkbox__input" name="checkboxFinished" id="checkboxFinishedId" />
<div class="checkbox__box checkbox__box_finished"></div>
Finished
</label>
</div>
<!-- Checkbox: Groups -->
<div class="checkbox-container">
<h3>Group</h3>
<label class="checkbox" for="checkboxGroupBasicId">
<input type="checkbox" class="checkbox__input" name="checkboxGroupBasic" id="checkboxGroupBasicId" />
<div class="checkbox__box"></div>
Basic
</label>
<label class="checkbox" for="checkboxGroupBasicBackId">
<input
type="checkbox"
class="checkbox__input"
name="checkboxGroupBasicBack"
id="checkboxGroupBasicBackId"
/>
<div class="checkbox__box"></div>
Basic Back
</label>
<label class="checkbox" for="checkboxGroupAdvancedId">
<input type="checkbox" class="checkbox__input" name="checkboxGroupAdvanced" id="checkboxGroupAdvancedId" />
<div class="checkbox__box"></div>
Advanced
</label>
<label class="checkbox" for="checkboxGroupExpertId">
<input type="checkbox" class="checkbox__input" name="checkboxExpertAdvanced" id="checkboxGroupExpertId" />
<div class="checkbox__box"></div>
Expert
</label>
</div>
</div>
<div class="div-checkbox-container-container">
<div class="checkbox-container">
<h3>Left / Right Slot</h3>
<label class="checkbox" for="checkboxLeftId">
<input type="checkbox" class="checkbox__input" name="checkboxLeft" id="checkboxLeftId" />
<div class="checkbox__box"></div>
Left
</label>
<label class="checkbox" for="checkboxRightId">
<input type="checkbox" class="checkbox__input" name="checkboxRight" id="checkboxRightId" />
<div class="checkbox__box"></div>
Right
</label>
</div>
<div class="checkbox-container">
<h3>AUF</h3>
<label class="checkbox" for="checkboxAUFId">
<input type="checkbox" class="checkbox__input" name="checkboxAUF" id="checkboxAUFId" />
<div class="checkbox__box"></div>
Add AUF
</label>
</div>
</div>
<h2>Hint</h2>
<div class="checkbox-container">
<div class="div-select-hint">
<p>Hint image:</p>
<select id="select-hint-image" class="select-hint">
<option value="none">None</option>
<option value="2d">2D Image</option>
<option value="3d" selected>3D Cube</option>
</select>
</div>
<div class="div-select-hint">
<p>Algorithm:</p>
<select id="select-hint-alg" class="select-hint">
<option value="step-by-step">Reveal step-by-step</option>
<option value="all-at-once">Reveal all at once</option>
<option value="all-time" selected>Show all time</option>
</select>
</div>
</div>
<h2>Additional</h2>
<div class="checkbox-container">
<label class="checkbox" for="checkboxEnableTimerId">
<input type="checkbox" class="checkbox__input" name="checkboxEnableTimer" id="checkboxEnableTimerId" />
<div class="checkbox__box"></div>
Enable Timer (experimental)
</label>
<button type="button" class="btn-delete btn-overlay" onclick="clearUserData()">Delete saved data</button>
</div>
<!-- Buttons: Update, Cancel Settings -->
<!-- <div class="update-cancel-buttons"> -->
<!-- <button type="button" class="btn-overlay" onclick="updateTrainCases()">Confirm</button>
<button type="button" class="btn-overlay" onclick="closeOverlays()">Cancel</button> -->
<!-- <form method="dialog"> -->
<!-- <button type="button" class="btn-overlay" onclick="updateTrainCases()">Confirm</button>
<button type="button" class="btn-overlay" onclick="closeOverlays()">Cancel</button> -->
<!-- <a type="button" class="btn-overlay" onclick="updateTrainCases()">Confirm</a>
<a type="button" class="btn-overlay" onclick="closeOverlays()">Cancel</a> -->
<!-- </form> -->
<!-- </div> -->
<div class="update-cancel-buttons">
<button type="button" class="btn-overlay" onclick="updateTrainCases()">
Confirm <img src="./images/confirm.svg" alt="Confirm" class="side-img" title="Confirm" loading="lazy" />
</button>
<button type="button" class="btn-overlay" onclick="closeOverlays()">
Cancel <img src="./images/cancel.svg" alt="Close" class="side-img" title="Close" loading="lazy" />
</button>
</div>
</dialog>
<!-- Welcome Train Container -->
<!-- <dialog id="welcome-container-train" class="popup-container">
<h2>How to use the trainer</h2>
<div class="div-centering">
<img
src="./images/instructions_train_page.png"
alt="Train Page Instructions"
class="img-instructions"
loading="lazy"
/>
</div>
<div class="update-cancel-buttons">
<input type="button" class="btn-overlay" onclick="closeOverlays()" value="To the Trainer" />
</div>
</dialog> -->
<!-- Change State Popup -->
<dialog id="popup-change-state" class="popup-container">
<h1>Change learning state to</h1>
<div>
<input class="radio-state" type="radio" id="radio-state-unlearned" name="state" value="unlearned" />
<label class="color-transparent label-state" for="radio-state-unlearned">Unlearned</label>
</div>
<div>
<input class="radio-state" type="radio" id="radio-state-learning" name="state" value="learning" />
<label class="color-yellow label-state" for="radio-state-learning">Learning</label>
</div>
<div>
<input class="radio-state" type="radio" id="radio-state-finished" name="state" value="finished" />
<label class="color-green label-state" for="radio-state-finished">Finished</label>
</div>
<div class="update-cancel-buttons">
<button type="button" class="btn-overlay" onclick="changeStateRadio()">
Confirm <img src="./images/confirm.svg" alt="Confirm" class="side-img" title="Confirm" loading="lazy" />
</button>
<button type="button" class="btn-overlay" onclick="closeOverlays()">
Cancel <img src="./images/cancel.svg" alt="Close" class="side-img" title="Close" loading="lazy" />
</button>
</div>
</dialog>
<!-- Settings Selection Window Popup -->
<!-- <dialog id="select-settings-container" class="popup-container">
<h2>Export Settings</h2>
<p>Use this URL to transfer your selected cases to other devices.</p>
<input type="text" id="input-export" value="https://f2l-trainer.top" readonly disabled />
<div class="update-cancel-buttons">
<button type="button" class="btn-overlay" onclick="copyUTLtoClipboard()">Copy to clipboard</button>
</div>
<div class="checkbox-container">
<h2>Additional</h2>
<button type="button" class="btn-delete btn-overlay" onclick="clearUserData()">Delete saved data</button>
</div>
<div class="update-cancel-buttons">
<button type="button" class="btn-overlay" onclick="closeOverlays()">
Close
<img src="./images/cancel.svg" alt="Close" class="side-img" title="Close" loading="lazy" />
</button>
</div>
</dialog> -->
<!-- Feedback Popup -->
<dialog id="feedback-container" class="popup-container">
<h2>Feedback</h2>
<p>
Send your feedback via this form or create an issue on
<a href="https://github.com/Dave2ooo/F2LTrainer/issues" target="_blank" rel="noopener noreferrer">Github.</a>
</p>
<form action="https://api.web3forms.com/submit" method="POST">
<!-- Custom Access Key -->
<input type="hidden" name="access_key" value="70f60afc-3ab0-4491-80be-e854832fddb9" />
<!-- Subject of the email -->
<input type="hidden" name="subject" value="F2L Trainer feedback" />
<input type="checkbox" name="botcheck" class="hidden" style="display: none" />
<!-- Captcha check (needs script to be uncommented at bottom of index.html) -->
<!-- <div class="h-captcha" data-captcha="true"></div> -->
<input id="feedback-name-id" class="feedback-text" type="text" name="name" required placeholder="Your Name" />
<input class="feedback-text" type="email" name="email" required placeholder="Your Email" />
<textarea class="feedback-text" name="message" required placeholder="Your Feedback"></textarea>
<div class="update-cancel-buttons">
<button type="submit" class="btn-overlay">
Submit
<img src="./images/submit.svg" alt="Send" class="side-img" title="Submit" loading="lazy" />
</button>
<button type="button" class="btn-overlay" onclick="closeOverlays()">
Close
<img src="./images/cancel.svg" alt="Close" class="side-img" title="Close" loading="lazy" />
</button>
</div>
</form>
</dialog>
<!-- POPUP-CONTAINER END -->
<!-- Top bar -->
<div id="side-container">
<div>
<!-- Button Info -->
<button type="button" class="side-button" id="btn-info" onclick="showInfo()">
<img src="./images/info.svg" alt="Info" class="side-img" title="Info" />
</button>
<!-- Button Settings Select -->
<div class="side-button btn-settings-select" , onclick="showSettingsTrain()">
<img src="./images/settings.svg" alt="Settings" class="side-img" title="Settings" />
</div>
<!-- Button Feedback -->
<div class="side-button btn-settings-select" , onclick="showFeedback()">
<img src="./images/feedback.svg" alt="Feedback" class="side-img" title="Feedback" />
</div>
</div>
<div class="container-select-group">
<!-- <label for="select-group-id" class="acessibility-label">Choose a Group:</label> -->
<!-- for accesibility -->
<select id="select-group-id" class="select-group" onchange="showSelectedGroup()">
<option value="basic" selected>Basic Cases</option>
<option value="basicBack">Basic Backslot</option>
<option value="advanced">Advanced Cases</option>
<option value="expert">Expert Cases</option>
</select>
</div>
<!-- Button Settings Train -->
<div class="side-button display-none btn-settings-train" , onclick="showSettingsTrain()">
<img src="./images/settings.svg" alt="Settings" class="side-img" title="Settings" />
</div>
<button type="button" id="change-mode" onclick="changeMode()">Train</button>
</div>
<!-- All the Cases will be listed here -->
<div id="window-select"></div>
<!-- <div id="overlay" onclick="closeOverlays()"></div> -->
<!-- Train Mode -->
<div class="window-train display-none">
<div class="div-centering">
<div id="scramble-container">
<img
src="./images/arrow_left.svg"
onclick="nextScramble(0)"
alt="previous scramble"
id="btn-next-scramble"
class="btn-next-prev"
title="Previous Scramble"
loading="lazy"
/>
<div id="scramble">no case selected</div>
<img
src="./images/arrow_right.svg"
onclick="nextScramble(1)"
alt="next scramble"
id="btn-next-scramble"
class="btn-next-prev"
title="Next Scramble"
loading="lazy"
/>
</div>
</div>
<div class="div-hint-img" onmousedown="spaceDown()" onmouseup="spaceUp()">
<img id="hint-img" src="./images/basic_cases/right/F2L1.svg" alt="Image of F2L Case" loading="lazy" />
<div id="loading-case" class="loader display-none"></div>
<div id="div-press-me-tain-id" class="div-press-me-train">Press<br />me</div>
</div>
<!-- All atributes and methods can be found here: https://js.cubing.net/cubing/api/classes/twisty.TwistyPlayer.html#timestamp -->
<!-- Example parameters can be found here: https://experiments.cubing.net/cubing.js/twisty/twisty-player-config.html -->
<div class="div-twisty-player">
<twisty-player
onpointerdown="showResetButton()"
puzzle="3x3x3"
experimental-setup-anchor="start"
hint-facelets="none"
back-view="none"
background="none"
experimental-stickering="full"
camera-latitude="25"
camera-longitude="25"
viewer-link="none"
camera-distance="5"
></twisty-player>
<img
src="./images/refresh.svg"
onmousedown="resetTwistyPlayerView()"
alt="Reset View"
class="btn-reset-player-view display-none"
loading="lazy"
/>
</div>
<div id="timer">00:00</div>
<div id="hint-container" onclick="showHint()">
<div id="hint-placeholder">Press to show hint</div>
<!-- TwistyAlgViewer is inserted here -->
</div>
<div class="div-btn-change-state-alg">
<button type="button" class="btn-change-state-alg" onclick="showSetStateMenu()">Change State</button>
<button type="button" class="btn-change-state-alg" id="btn-change-alg-id" onclick="editCurrentAlg()">
Change Alg
</button>
</div>
<button id="btn-show-hide-debug-info" onclick="showHideDebugInfo()">> Hide info</button>
<div id="debug-info"></div>
</div>
<!-- Scripts -->
<!-- Basic -->
<script src="./scripts/scrambles/basic_scrambles.js"></script>
<script src="./scripts/algorithms/basic_algorithms.js"></script>
<!-- Basic Back -->
<script src="./scripts/scrambles/basic_scrambles_back.js"></script>
<script src="./scripts/algorithms/basic_algorithms_back.js"></script>
<!-- Advanced -->
<script src="./scripts/scrambles/advanced_scrambles.js"></script>
<script src="./scripts/algorithms/advanced_algorithms.js"></script>
<!-- Expert -->
<script src="./scripts/scrambles/expert_scrambles.js"></script>
<script src="./scripts/algorithms/expert_algorithms.js"></script>
<!-- Other -->
<script src="./scripts/user_saved.js"></script>
<script src="./scripts/groups.js"></script>
<script src="./scripts/string_manipulation.js"></script>
<script src="./scripts/main.js" defer></script>
<!-- cubing.js -->
<!-- <script src="https://cdn.cubing.net/js/cubing/twisty" type="module" defer></script> -->
<!-- <script type="module">
import { TwistyAlgViewer } from "https://cdn.cubing.net/js/cubing/twisty";
const ELEM_TWISTY_PLAYER = document.querySelector("twisty-player");
const ELEM_HINT_CONTAINER = document.getElementById("hint-container");
ELEM_HINT_CONTAINER.appendChild(new TwistyAlgViewer({ twistyPlayer: ELEM_TWISTY_PLAYER }));
</script> -->
<!-- web3forms (Feedback function) Required only if you are using hCaptcha or Advanced File Upload. -->
<!-- <script src="https://web3forms.com/client/script.js" async defer></script> -->
<!-- Google Tag Manager (noscript: only useful if user has no Javascript installed) -->
<!-- <noscript
><iframe
src="https://www.googletagmanager.com/ns.html?id=GTM-P5XPQWK5"
height="0"
width="0"
style="display: none; visibility: hidden"
></iframe
></noscript> -->
<!-- End Google Tag Manager (noscript) -->
</body>
</html>