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Open Recall

Open Recall is an Open Source N-Back Task Game like Simply-Recall designed to improve working memory and cognitive abilities.

Research shows that N-Back training may lead to gains in fluid intelligence (IQ) and working memory ability (Soveri et al., 2017).

The N-Back task is a memory training game that is designed to improve working memory and cognitive abilities. To play the game, you will be presented with a sequence of items such as letters, numbers, or words. Your goal is to indicate whenever the current item matches the item that was presented "n" steps back in the sequence. The value of "n" determines the difficulty of the task. For example, if "n" is set to 1, you would need to recall the item that was presented one step back. If "n" is set to 2, you would need to recall the item that was presented two steps back, and so on. The game typically continues until you have completed a certain number of rounds or made a certain number of errors. To play, simply focus on the items as they are presented and try to recall the item that was presented "n" steps back. Good luck!

Play it

You can play the game at Open Recall On Vercel

Game

  • step 1: click start button.
  • step 2: set game time limit and level, and click play button.
  • step 3: enjoy the game.
HomeSettingGuide
PlayingScoreHistory

When Level = 2, you need to remember the previous two items. Suppose we have a list: Apple (n - 2), Banana (n - 1), Apple (n). Click yes because the current item is the same as the item two steps back.

Deploy

npm install
npm run build

About

N-Back Task Games designed to improve working memory and cognitive abilities.

Topics

Resources

Stars

29 stars

Watchers

2 watching

Forks

Releases

Packages

Used by

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Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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Open Recall

Open Recall is an Open Source N-Back Task Game like Simply-Recall designed to improve working memory and cognitive abilities.

Research shows that N-Back training may lead to gains in fluid intelligence (IQ) and working memory ability (Soveri et al., 2017).

The N-Back task is a memory training game that is designed to improve working memory and cognitive abilities. To play the game, you will be presented with a sequence of items such as letters, numbers, or words. Your goal is to indicate whenever the current item matches the item that was presented "n" steps back in the sequence. The value of "n" determines the difficulty of the task. For example, if "n" is set to 1, you would need to recall the item that was presented one step back. If "n" is set to 2, you would need to recall the item that was presented two steps back, and so on. The game typically continues until you have completed a certain number of rounds or made a certain number of errors. To play, simply focus on the items as they are presented and try to recall the item that was presented "n" steps back. Good luck!

Play it

You can play the game at Open Recall On Vercel

Game

  • step 1: click start button.
  • step 2: set game time limit and level, and click play button.
  • step 3: enjoy the game.
HomeSettingGuide
PlayingScoreHistory

When Level = 2, you need to remember the previous two items. Suppose we have a list: Apple (n - 2), Banana (n - 1), Apple (n). Click yes because the current item is the same as the item two steps back.

Deploy

npm install
npm run build

About

N-Back Task Games designed to improve working memory and cognitive abilities.

Topics

Resources

Stars

29 stars

Watchers

2 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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English | 简体中文

Open Recall

Open Recall is an Open Source N-Back Task Game like Simply-Recall designed to improve working memory and cognitive abilities.

Research shows that N-Back training may lead to gains in fluid intelligence (IQ) and working memory ability (Soveri et al., 2017).

The N-Back task is a memory training game that is designed to improve working memory and cognitive abilities. To play the game, you will be presented with a sequence of items such as letters, numbers, or words. Your goal is to indicate whenever the current item matches the item that was presented "n" steps back in the sequence. The value of "n" determines the difficulty of the task. For example, if "n" is set to 1, you would need to recall the item that was presented one step back. If "n" is set to 2, you would need to recall the item that was presented two steps back, and so on. The game typically continues until you have completed a certain number of rounds or made a certain number of errors. To play, simply focus on the items as they are presented and try to recall the item that was presented "n" steps back. Good luck!

Play it

You can play the game at Open Recall On Vercel

Game

  • step 1: click start button.
  • step 2: set game time limit and level, and click play button.
  • step 3: enjoy the game.
HomeSettingGuide
PlayingScoreHistory

When Level = 2, you need to remember the previous two items. Suppose we have a list: Apple (n - 2), Banana (n - 1), Apple (n). Click yes because the current item is the same as the item two steps back.

Deploy

npm install
npm run build

About

N-Back Task Games designed to improve working memory and cognitive abilities.

Topics

Resources

Stars

29 stars

Watchers

2 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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English | 简体中文

Open Recall

Open Recall is an Open Source N-Back Task Game like Simply-Recall designed to improve working memory and cognitive abilities.

Research shows that N-Back training may lead to gains in fluid intelligence (IQ) and working memory ability (Soveri et al., 2017).

The N-Back task is a memory training game that is designed to improve working memory and cognitive abilities. To play the game, you will be presented with a sequence of items such as letters, numbers, or words. Your goal is to indicate whenever the current item matches the item that was presented "n" steps back in the sequence. The value of "n" determines the difficulty of the task. For example, if "n" is set to 1, you would need to recall the item that was presented one step back. If "n" is set to 2, you would need to recall the item that was presented two steps back, and so on. The game typically continues until you have completed a certain number of rounds or made a certain number of errors. To play, simply focus on the items as they are presented and try to recall the item that was presented "n" steps back. Good luck!

Play it

You can play the game at Open Recall On Vercel

Game

  • step 1: click start button.
  • step 2: set game time limit and level, and click play button.
  • step 3: enjoy the game.
HomeSettingGuide
PlayingScoreHistory

When Level = 2, you need to remember the previous two items. Suppose we have a list: Apple (n - 2), Banana (n - 1), Apple (n). Click yes because the current item is the same as the item two steps back.

Deploy

npm install
npm run build

About

N-Back Task Games designed to improve working memory and cognitive abilities.

Topics

Resources

Stars

29 stars

Watchers

2 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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Repository files navigation

English | 简体中文

Open Recall

Open Recall is an Open Source N-Back Task Game like Simply-Recall designed to improve working memory and cognitive abilities.

Research shows that N-Back training may lead to gains in fluid intelligence (IQ) and working memory ability (Soveri et al., 2017).

The N-Back task is a memory training game that is designed to improve working memory and cognitive abilities. To play the game, you will be presented with a sequence of items such as letters, numbers, or words. Your goal is to indicate whenever the current item matches the item that was presented "n" steps back in the sequence. The value of "n" determines the difficulty of the task. For example, if "n" is set to 1, you would need to recall the item that was presented one step back. If "n" is set to 2, you would need to recall the item that was presented two steps back, and so on. The game typically continues until you have completed a certain number of rounds or made a certain number of errors. To play, simply focus on the items as they are presented and try to recall the item that was presented "n" steps back. Good luck!

Play it

You can play the game at Open Recall On Vercel

Game

  • step 1: click start button.
  • step 2: set game time limit and level, and click play button.
  • step 3: enjoy the game.
HomeSettingGuide
PlayingScoreHistory

When Level = 2, you need to remember the previous two items. Suppose we have a list: Apple (n - 2), Banana (n - 1), Apple (n). Click yes because the current item is the same as the item two steps back.

Deploy

npm install
npm run build

About

N-Back Task Games designed to improve working memory and cognitive abilities.

Topics

Resources

Stars

29 stars

Watchers

2 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Repository files navigation

English | 简体中文

Open Recall

Open Recall is an Open Source N-Back Task Game like Simply-Recall designed to improve working memory and cognitive abilities.

Research shows that N-Back training may lead to gains in fluid intelligence (IQ) and working memory ability (Soveri et al., 2017).

The N-Back task is a memory training game that is designed to improve working memory and cognitive abilities. To play the game, you will be presented with a sequence of items such as letters, numbers, or words. Your goal is to indicate whenever the current item matches the item that was presented "n" steps back in the sequence. The value of "n" determines the difficulty of the task. For example, if "n" is set to 1, you would need to recall the item that was presented one step back. If "n" is set to 2, you would need to recall the item that was presented two steps back, and so on. The game typically continues until you have completed a certain number of rounds or made a certain number of errors. To play, simply focus on the items as they are presented and try to recall the item that was presented "n" steps back. Good luck!

Play it

You can play the game at Open Recall On Vercel

Game

  • step 1: click start button.
  • step 2: set game time limit and level, and click play button.
  • step 3: enjoy the game.
HomeSettingGuide
PlayingScoreHistory

When Level = 2, you need to remember the previous two items. Suppose we have a list: Apple (n - 2), Banana (n - 1), Apple (n). Click yes because the current item is the same as the item two steps back.

Deploy

npm install
npm run build

About

N-Back Task Games designed to improve working memory and cognitive abilities.

Topics

Resources

Stars

29 stars

Watchers

2 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Repository files navigation

English | 简体中文

Open Recall

Open Recall is an Open Source N-Back Task Game like Simply-Recall designed to improve working memory and cognitive abilities.

Research shows that N-Back training may lead to gains in fluid intelligence (IQ) and working memory ability (Soveri et al., 2017).

The N-Back task is a memory training game that is designed to improve working memory and cognitive abilities. To play the game, you will be presented with a sequence of items such as letters, numbers, or words. Your goal is to indicate whenever the current item matches the item that was presented "n" steps back in the sequence. The value of "n" determines the difficulty of the task. For example, if "n" is set to 1, you would need to recall the item that was presented one step back. If "n" is set to 2, you would need to recall the item that was presented two steps back, and so on. The game typically continues until you have completed a certain number of rounds or made a certain number of errors. To play, simply focus on the items as they are presented and try to recall the item that was presented "n" steps back. Good luck!

Play it

You can play the game at Open Recall On Vercel

Game

  • step 1: click start button.
  • step 2: set game time limit and level, and click play button.
  • step 3: enjoy the game.
HomeSettingGuide
PlayingScoreHistory

When Level = 2, you need to remember the previous two items. Suppose we have a list: Apple (n - 2), Banana (n - 1), Apple (n). Click yes because the current item is the same as the item two steps back.

Deploy

npm install
npm run build

About

N-Back Task Games designed to improve working memory and cognitive abilities.

Topics

Resources

Stars

29 stars

Watchers

2 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

Repository files navigation

English | 简体中文

Open Recall

Open Recall is an Open Source N-Back Task Game like Simply-Recall designed to improve working memory and cognitive abilities.

Research shows that N-Back training may lead to gains in fluid intelligence (IQ) and working memory ability (Soveri et al., 2017).

The N-Back task is a memory training game that is designed to improve working memory and cognitive abilities. To play the game, you will be presented with a sequence of items such as letters, numbers, or words. Your goal is to indicate whenever the current item matches the item that was presented "n" steps back in the sequence. The value of "n" determines the difficulty of the task. For example, if "n" is set to 1, you would need to recall the item that was presented one step back. If "n" is set to 2, you would need to recall the item that was presented two steps back, and so on. The game typically continues until you have completed a certain number of rounds or made a certain number of errors. To play, simply focus on the items as they are presented and try to recall the item that was presented "n" steps back. Good luck!

Play it

You can play the game at Open Recall On Vercel

Game

  • step 1: click start button.
  • step 2: set game time limit and level, and click play button.
  • step 3: enjoy the game.
HomeSettingGuide
PlayingScoreHistory

When Level = 2, you need to remember the previous two items. Suppose we have a list: Apple (n - 2), Banana (n - 1), Apple (n). Click yes because the current item is the same as the item two steps back.

Deploy

npm install
npm run build

About

N-Back Task Games designed to improve working memory and cognitive abilities.

Topics

Resources

Stars

29 stars

Watchers

2 watching

Forks

Releases

Packages

Used by

Contributors

Languages