{"id":450,"date":"2023-11-27T15:25:40","date_gmt":"2023-11-27T15:25:40","guid":{"rendered":"https:\/\/sinewavelab.com\/sonofields\/?p=450"},"modified":"2026-02-11T23:20:26","modified_gmt":"2026-02-11T23:20:26","slug":"brain-waves-while-playing-sudoku","status":"publish","type":"post","link":"https:\/\/sinewavelab.com\/sonofields\/brain-waves-while-playing-sudoku\/","title":{"rendered":"Brain waves while playing Sudoku"},"content":{"rendered":"\n<p>This page contains the data and analysis of a brain wave recording session I did using a <a href=\"https:\/\/amzn.to\/3UP8onB\">Muse EEG Headband<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Session Characteristics<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>02\/11\/2023, 16:52<\/li>\n\n\n\n<li>During this session, I was playing a 9&#215;9 Sudoku game on paper.<\/li>\n\n\n\n<li>In the middle of it, I got a bit sleepy.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">All Sensors<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Even though looking at the data as is shown below is not very clear, we can still discern that:<\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Gamma<\/mark>has the lowest dominance throughout the whole session, and it&#8217;s separated into its own territory.<\/li>\n\n\n\n<li>Over time,<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Gamma<\/mark>increases in energy, while other frequencies remain more stable. <\/li>\n\n\n\n<li>For a clearer picture let&#8217;s smooth out this activity.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05.webp\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"452\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05-1024x452.webp\" alt=\"\" class=\"wp-image-3309\" srcset=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05-1024x452.webp 1024w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05-300x132.webp 300w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05-768x339.webp 768w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05-1536x678.webp 1536w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05-600x265.webp 600w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05-280x124.webp 280w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05-1036x457.webp 1036w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-05.webp 1661w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">All Sensors (Smoothed Out)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Smoothing out the frequency bands confirms what was mentioned in the previous section.<\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Gamma<\/mark>and<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Beta<\/mark>remain in lower dominance throughout the whole session, which seems to be unexpected since this session supposedly required some brain effort.<\/li>\n\n\n\n<li>However, since I mentioned I felt a bit sleepy during the middle of the session, that indicates that I was performing this task in a relaxed state. The nature of Sudoku does not require super-focused attention under a chronometer (like <a href=\"https:\/\/sinewavelab.com\/sonofields\/brain-waves-while-playing-brain-games\/\">Session 12<\/a>) so it&#8217;s possible to complete that activity while being more relaxed, which might explain the graphs we&#8217;re observing.<\/li>\n\n\n\n<li>Still, looking at the sensor data from <em>all sensors <\/em>rarely tells the whole story, so next we&#8217;ll look into individual sensor data.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/eeg-session-13-sudoku-01.webp\"><img decoding=\"async\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/eeg-session-13-sudoku-01.webp\" alt=\"\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">AF7, AF8 and TP10 Sensors (Smoothed Out)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Looking at the <strong>Front-Left (AF7)<\/strong>, <strong>Front-Right (AF8),<\/strong> and <strong>Back-Right (TP10)<\/strong> sensors, we detect, overall, the same pattern.<\/li>\n\n\n\n<li>High<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Alpha<\/mark>dominance and low<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Beta<\/mark>and<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Gamma<\/mark>dominance in all those quadrants seem to show that there is not much activation happening there. <\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06.webp\"><img decoding=\"async\" width=\"1024\" height=\"521\" data-id=\"3310\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06-1024x521.webp\" alt=\"\" class=\"wp-image-3310\" srcset=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06-1024x521.webp 1024w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06-300x153.webp 300w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06-768x391.webp 768w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06-1536x781.webp 1536w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06-600x305.webp 600w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06-280x142.webp 280w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06-1036x527.webp 1036w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-06.webp 1549w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07.webp\"><img decoding=\"async\" width=\"1024\" height=\"522\" data-id=\"3311\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07-1024x522.webp\" alt=\"\" class=\"wp-image-3311\" srcset=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07-1024x522.webp 1024w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07-300x153.webp 300w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07-768x392.webp 768w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07-1536x783.webp 1536w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07-600x306.webp 600w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07-280x143.webp 280w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07-1036x528.webp 1036w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-07.webp 1541w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08.webp\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"524\" data-id=\"3312\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08-1024x524.webp\" alt=\"\" class=\"wp-image-3312\" srcset=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08-1024x524.webp 1024w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08-300x153.webp 300w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08-768x393.webp 768w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08-1536x785.webp 1536w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08-600x307.webp 600w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08-280x143.webp 280w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08-1036x530.webp 1036w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-08.webp 1539w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Left-Back Sensor (TP9)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The only sensor left to analyze is the <strong>Left-Back (TP9)<\/strong>.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>We must find some form of higher activation in this part of the brain, otherwise, you probably won&#8217;t even believe I was able to solve the Sudoku game.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09.webp\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"485\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09-1024x485.webp\" alt=\"\" class=\"wp-image-3313\" srcset=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09-1024x485.webp 1024w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09-300x142.webp 300w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09-768x363.webp 768w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09-1536x727.webp 1536w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09-600x284.webp 600w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09-280x133.webp 280w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09-1036x490.webp 1036w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-09.webp 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>And indeed that is what is observed in the graph above! \u2705<\/li>\n\n\n\n<li>While<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Alpha<\/mark>is still dominant,<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Beta<\/mark>clearly takes the second lead in dominance, and<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Gamma,<\/mark>even though it&#8217;s still the lowest dominant range, is much higher than in other quadrants, and helps form a tighter band comprised of all five frequencies.<\/li>\n\n\n\n<li>This indicates that the brain power used for solving Sudoku was located mainly in the <strong>Left-Back <\/strong>quadrant. This is similar to <a href=\"https:\/\/sinewavelab.com\/sonofields\/brain-waves-while-playing-brain-games\/\">Session 12<\/a>.<\/li>\n<\/ul>\n\n\n\n<p>However, to be fair, it is also true that while not the most dominant frequencies there, <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Beta<\/mark>and <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">Gamma<\/mark>still had a constant and gradual increase in energy in the front AF7 and AF8 sensors.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02.webp\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"262\" data-id=\"4799\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02-1024x262.webp\" alt=\"\" class=\"wp-image-4799\" srcset=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02-1024x262.webp 1024w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02-300x77.webp 300w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02-768x196.webp 768w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02-600x153.webp 600w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02-280x72.webp 280w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02-1036x265.webp 1036w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/Mind-Monitor-EEG-Sudoku-Beta-and-Gamma-dominance-in-AF7-and-AF8-Inverted-Colors-v02.webp 1240w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>In terms of percentages, these two frequencies had a proper increase, up to 50% and 100% respectively. I&#8217;d say this is a result of my brain effort, but let&#8217;s not let the graph above fool us into thinking they were very dominant in those areas \u2014 the truth is, they were still the least dominant frequencies in AF7 and AF8. The really impressive and most interesting aspect of the session for me was, without a doubt, what happened in TP9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quadrant Energy Levels (Overview)<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/eeg-session-13-sudoku-03.webp\"><img decoding=\"async\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/eeg-session-13-sudoku-03.webp\" alt=\"\"\/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Centers of Gravity (Overview)<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02.webp\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"153\" src=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-1024x153.webp\" alt=\"\" class=\"wp-image-3437\" srcset=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-1024x153.webp 1024w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-300x45.webp 300w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-768x115.webp 768w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-1536x229.webp 1536w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-2048x306.webp 2048w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-600x90.webp 600w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-280x42.webp 280w, https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/12\/eeg-session-13-sudoku-04_v02-1036x155.webp 1036w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p><strong>For reference:<\/strong>  the circle marks the central area of the brain. Activity inside it is more central and symmetrical; outside is more asymmetrical.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Stay Synced!<\/h2>\n\n\n\n<style type=\"text\/css\">@import url(\"https:\/\/assets.mlcdn.com\/fonts.css?version=1714030\");<\/style>\n    <style type=\"text\/css\">\n    \/* LOADER *\/\n    .ml-form-embedSubmitLoad {\n      display: inline-block;\n      width: 20px;\n      height: 20px;\n    }\n\n    .g-recaptcha {\n    transform: scale(1);\n    -webkit-transform: scale(1);\n    transform-origin: 0 0;\n    -webkit-transform-origin: 0 0;\n    height: ;\n    }\n\n    .sr-only {\n      position: absolute;\n      width: 1px;\n      height: 1px;\n      padding: 0;\n      margin: -1px;\n      overflow: hidden;\n      clip: rect(0,0,0,0);\n      border: 0;\n    }\n\n    .ml-form-embedSubmitLoad:after {\n      content: \" \";\n      display: block;\n      width: 11px;\n      height: 11px;\n      margin: 1px;\n      border-radius: 50%;\n      border: 4px solid #fff;\n    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{\n        border-top-left-radius: 4px;\n        border-top-right-radius: 4px;\n        height: auto;\n        margin: 0 auto !important;\n        max-width: 100%;\n        width: undefinedpx;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody {\n        padding: 20px 20px 0 20px;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody.ml-form-embedBodyHorizontal {\n        padding-bottom: 0;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent {\n        text-align: left;\n        margin: 0 0 20px 0;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent h4,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent h4 {\n        color: #000000;\n        font-family: 'Open Sans', Arial, Helvetica, sans-serif;\n        font-size: 30px;\n        font-weight: 400;\n        margin: 0 0 10px 0;\n        text-align: left;\n        word-break: break-word;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent p,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent p {\n        color: #000000;\n        font-family: 'Open Sans', Arial, Helvetica, sans-serif;\n        font-size: 14px;\n        font-weight: 400;\n        line-height: 20px;\n        margin: 0 0 10px 0;\n        text-align: left;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent ul,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent ol,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent ul,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent ol {\n        color: #000000;\n        font-family: 'Open Sans', Arial, Helvetica, sans-serif;\n        font-size: 14px;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent ol ol,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent ol ol {\n        list-style-type: lower-alpha;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent ol ol ol,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent ol ol ol {\n        list-style-type: lower-roman;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent p a,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent p a {\n        color: #000000;\n        text-decoration: underline;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-block-form .ml-field-group {\n        text-align: left!important;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-block-form .ml-field-group label {\n        margin-bottom: 5px;\n        color: #333333;\n        font-size: 14px;\n        font-family: 'Open Sans', Arial, Helvetica, sans-serif;\n        font-weight: bold; font-style: normal; text-decoration: none;;\n        display: inline-block;\n        line-height: 20px;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedContent p:last-child,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-successBody .ml-form-successContent p:last-child {\n        margin: 0;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody form {\n        margin: 0;\n        width: 100%;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-formContent,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow {\n        margin: 0 0 20px 0;\n        width: 100%;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow {\n        float: left;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-formContent.horozintalForm {\n        margin: 0;\n        padding: 0 0 20px 0;\n        width: 100%;\n        height: auto;\n        float: left;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow {\n        margin: 0 0 10px 0;\n        width: 100%;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow.ml-last-item {\n        margin: 0;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow.ml-formfieldHorizintal {\n        margin: 0;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow input {\n        background-color: #ffffff !important;\n        color: #333333 !important;\n        border-color: #cccccc;\n        border-radius: 4px !important;\n        border-style: solid !important;\n        border-width: 1px !important;\n        font-family: 'Open Sans', Arial, Helvetica, sans-serif;\n        font-size: 14px !important;\n        height: auto;\n        line-height: 21px !important;\n        margin-bottom: 0;\n        margin-top: 0;\n        margin-left: 0;\n        margin-right: 0;\n        padding: 10px 10px !important;\n        width: 100% !important;\n        box-sizing: border-box !important;\n        max-width: 100% !important;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow input::-webkit-input-placeholder,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow input::-webkit-input-placeholder { color: #333333; }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow input::-moz-placeholder,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow input::-moz-placeholder { color: #333333; }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow input:-ms-input-placeholder,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow input:-ms-input-placeholder { color: #333333; }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow input:-moz-placeholder,\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow input:-moz-placeholder { color: #333333; }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow textarea, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow textarea {\n        background-color: #ffffff !important;\n        color: #333333 !important;\n        border-color: #cccccc;\n        border-radius: 4px !important;\n        border-style: solid !important;\n        border-width: 1px !important;\n        font-family: 'Open Sans', Arial, Helvetica, sans-serif;\n        font-size: 14px !important;\n        height: auto;\n        line-height: 21px !important;\n        margin-bottom: 0;\n        margin-top: 0;\n        padding: 10px 10px !important;\n        width: 100% !important;\n        box-sizing: border-box !important;\n        max-width: 100% !important;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-radio .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-radio .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-checkbox .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-checkbox .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-interestGroupsRow .ml-form-interestGroupsRowCheckbox .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::before {\n          border-color: #cccccc!important;\n          background-color: #ffffff!important;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow input.custom-control-input[type=\"checkbox\"]{\n        box-sizing: border-box;\n        padding: 0;\n        position: absolute;\n        z-index: -1;\n        opacity: 0;\n        margin-top: 5px;\n        margin-left: -1.5rem;\n        overflow: visible;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-checkbox .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-checkbox .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-interestGroupsRow .ml-form-interestGroupsRowCheckbox .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::before {\n        border-radius: 4px!important;\n      }\n\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow input[type=checkbox]:checked~.label-description::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox input[type=checkbox]:checked~.label-description::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-checkbox .custom-control-input:checked~.custom-control-label::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-checkbox .custom-control-input:checked~.custom-control-label::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-interestGroupsRow .ml-form-interestGroupsRowCheckbox input[type=checkbox]:checked~.label-description::after {\n        background-image: url(\"data:image\/svg+xml,%3csvg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='0 0 8 8'%3e%3cpath fill='%23fff' d='M6.564.75l-3.59 3.612-1.538-1.55L0 4.26 2.974 7.25 8 2.193z'\/%3e%3c\/svg%3e\");\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-radio .custom-control-input:checked~.custom-control-label::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-radio .custom-control-input:checked~.custom-control-label::after {\n        background-image: url(\"data:image\/svg+xml,%3csvg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'\/%3e%3c\/svg%3e\");\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-radio .custom-control-input:checked~.custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-radio .custom-control-input:checked~.custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-checkbox .custom-control-input:checked~.custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-checkbox .custom-control-input:checked~.custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox input[type=checkbox]:checked~.label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-interestGroupsRow .ml-form-interestGroupsRowCheckbox input[type=checkbox]:checked~.label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow input[type=checkbox]:checked~.label-description::before  {\n          border-color: #000000!important;\n          background-color: #000000!important;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-radio .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-radio .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-radio .custom-control-label::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-radio .custom-control-label::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-checkbox .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-fieldRow .custom-checkbox .custom-control-label::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-checkbox .custom-control-label::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-horizontalRow .custom-checkbox .custom-control-label::after {\n           top: 2px;\n           box-sizing: border-box;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox .label-description::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::after {\n           top: 0px!important;\n           box-sizing: border-box!important;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::after {\n        top: 0px!important;\n           box-sizing: border-box!important;\n      }\n\n       #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-interestGroupsRow .ml-form-interestGroupsRowCheckbox .label-description::after {\n            top: 0px!important;\n            box-sizing: border-box!important;\n            position: absolute;\n            left: -1.5rem;\n            display: block;\n            width: 1rem;\n            height: 1rem;\n            content: \"\";\n       }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-interestGroupsRow .ml-form-interestGroupsRowCheckbox .label-description::before {\n        top: 0px!important;\n        box-sizing: border-box!important;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .custom-control-label::before {\n          position: absolute;\n          top: 4px;\n          left: -1.5rem;\n          display: block;\n          width: 16px;\n          height: 16px;\n          pointer-events: none;\n          content: \"\";\n          background-color: #ffffff;\n          border: #adb5bd solid 1px;\n          border-radius: 50%;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .custom-control-label::after {\n          position: absolute;\n          top: 2px!important;\n          left: -1.5rem;\n          display: block;\n          width: 1rem;\n          height: 1rem;\n          content: \"\";\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-interestGroupsRow .ml-form-interestGroupsRowCheckbox .label-description::before, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::before {\n          position: absolute;\n          top: 4px;\n          left: -1.5rem;\n          display: block;\n          width: 16px;\n          height: 16px;\n          pointer-events: none;\n          content: \"\";\n          background-color: #ffffff;\n          border: #adb5bd solid 1px;\n          border-radius: 50%;\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox .label-description::after {\n          position: absolute;\n          top: 0px!important;\n          left: -1.5rem;\n          display: block;\n          width: 1rem;\n          height: 1rem;\n          content: \"\";\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::after {\n          position: absolute;\n          top: 0px!important;\n          left: -1.5rem;\n          display: block;\n          width: 1rem;\n          height: 1rem;\n          content: \"\";\n      }\n\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .custom-radio .custom-control-label::after {\n          background: no-repeat 50%\/50% 50%;\n      }\n      #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .custom-checkbox .custom-control-label::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-embedPermissions .ml-form-embedPermissionsOptionsCheckbox .label-description::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-interestGroupsRow .ml-form-interestGroupsRowCheckbox .label-description::after, #mlb2-14344364.ml-form-embedContainer .ml-form-embedWrapper .ml-form-embedBody .ml-form-checkboxRow .label-description::after {\n          background: no-repeat 50%\/50% 50%;\n      }\n\n      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Join the newsletter and I&#8217;ll send you some emails about:<\/p>\n\n\n\n<p><strong>\u25aa The Science: <\/strong>What science has been saying about brain waves and brainwave entrainment, specific frequencies like 432 Hz and 0.1 Hz, and more.<br><strong>\u25aa The Esoteric: <\/strong>My ideas on geometrical and mathematical spirituality.<br><strong>\u25aa The Practical: <\/strong>How to transform these ideas into practical tools.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>This page contains the data and analysis of a brain wave recording session I did using a Muse EEG Headband. Session Characteristics All Sensors All Sensors (Smoothed Out) AF7, AF8 and TP10 Sensors (Smoothed Out) Left-Back Sensor (TP9) However, to be fair, it is also true that while not the most dominant frequencies there, Betaand &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/sinewavelab.com\/sonofields\/brain-waves-while-playing-sudoku\/\">Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":556,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71],"tags":[],"class_list":["post-450","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-brainwave-journal","nodate","item-wrap"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Brain waves while playing Sudoku - SonoFields<\/title>\n<meta name=\"description\" content=\"Explore the analysis of brain wave activity during a Sudoku session, highlighting the dominance of certain waves in cognitive engagement.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sinewavelab.com\/sonofields\/brain-waves-while-playing-sudoku\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Brain waves while playing Sudoku - SonoFields\" \/>\n<meta property=\"og:description\" content=\"Explore the analysis of brain wave activity during a Sudoku session, highlighting the dominance of certain waves in cognitive engagement.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sinewavelab.com\/sonofields\/brain-waves-while-playing-sudoku\/\" \/>\n<meta property=\"og:site_name\" content=\"SonoFields\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61552921303671\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-27T15:25:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-11T23:20:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sinewavelab.com\/sonofields\/wp-content\/uploads\/2023\/11\/eeg-session-13-sudoku-01.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1674\" \/>\n\t<meta property=\"og:image:height\" content=\"795\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Micael L. 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