{"workflow":{"id":14194,"name":"Judge AI math RPG answers with OpenAI/OpenRouter and update quests in Google Sheets","views":5,"recentViews":0,"totalViews":5,"createdAt":"2026-03-20T12:16:59.453Z","description":"## Judge AI math RPG answers and update quest status in Google Sheets\n\n## Who it's for\nThis template is for educators, parents, or self-learners who want to gamify their study routines. This is **Part 2** of the \"AI Math RPG\" system. It handles the quiz judgment and status updates without using expensive AI tokens for basic math checks.\n\n## How it works\nWhen a user submits their answer via an n8n Form, this workflow searches Google Sheets for their `pending` quest. It uses a fast and reliable IF node to check if the user's answer matches the correct answer generated previously. \nIf correct, it updates the quest status to `solved` in Google Sheets to prevent infinite EXP farming, and then uses a Basic LLM Chain to generate an enthusiastic, RPG-style victory fanfare. If incorrect, it returns a friendly \"try again\" message.\n\n## How to set up\n1. Ensure you have set up **Part 1** of this system (Generate AI math RPG quests from study logs).\n2. Connect your Google Sheets credential and replace `ENTER_YOUR_SPREADSHEET_ID_HERE` with your actual Sheet ID.\n3. Connect your OpenAI or OpenRouter credential in the LLM node.\n4. Open the \"Quiz Answer Form\" and enter your user ID and answer to test the battle!\n\n## Requirements\n- A Google account (for Google Sheets)\n- An OpenAI or OpenRouter API key\n\n## How to customize the workflow\nYou can easily customize the \"Generate Victory Message\" prompt to match different themes, like a sci-fi battle, a magic school, or historical events!","workflow":{"id":"90IqOUaJnNLqxcfl","meta":{"instanceId":"d268c8395d221f48084db7825ba19a0ea56302d1ee64fed53bbcff16e8562c88","templateCredsSetupCompleted":true},"name":"Judge AI math RPG answers and update quest status in Google Sheets","tags":[],"nodes":[{"id":"6e2c9cd7-5313-4e66-82d5-13a69fca9447","name":"OpenRouter Chat Model","type":"@n8n/n8n-nodes-langchain.lmChatOpenRouter","position":[992,64],"parameters":{"model":"openai/gpt-4o-mini","options":{"maxTokens":300}},"credentials":{"openRouterApi":{"id":"PLxgGTjmZDmHyqjA","name":"OpenRouter account"}},"typeVersion":1},{"id":"7e26dfe5-141e-4e70-96a2-be8d07e019a8","name":"Quiz Answer Form","type":"n8n-nodes-base.formTrigger","position":[0,0],"webhookId":"5a94cf86-d530-4ad8-888e-c983cfcf1ef3","parameters":{"options":{},"formTitle":"AI Math RPG - Attack (Answer) Form","formFields":{"values":[{"fieldLabel":"user_id","requiredField":true},{"fieldLabel":"answer","requiredField":true}]},"formDescription":"Enter the answer to the monster's question to attack!\n"},"typeVersion":2.3},{"id":"302c5815-4cbd-4014-8630-3467f087a717","name":"Return Miss Message","type":"n8n-nodes-base.code","position":[752,336],"parameters":{"mode":"runOnceForEachItem","jsCode":"return {\n  message: \"❌ You missed! 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This is **Part 2** of the \"AI Math RPG\" system. It handles the quiz judgment and status updates without using expensive AI tokens for basic math checks.\n\n## How it works\nWhen a user submits their answer via an n8n Form, this workflow searches Google Sheets for their `pending` quest. It uses a fast and reliable IF node to check if the user's answer matches the correct answer generated previously. \nIf correct, it updates the quest status to `solved` in Google Sheets to prevent infinite EXP farming, and then uses a Basic LLM Chain to generate an enthusiastic, RPG-style victory fanfare. If incorrect, it returns a friendly \"try again\" message.\n\n## How to set up\n1. Ensure you have set up **Part 1** of this system (Generate AI math RPG quests from study logs).\n2. Connect your Google Sheets credential and replace `ENTER_YOUR_SPREADSHEET_ID_HERE` with your actual Sheet ID.\n3. Connect your OpenAI or OpenRouter credential in the LLM node.\n4. Open the \"Quiz Answer Form\" and enter your user ID and answer to test the battle!\n\n## Requirements\n- A Google account (for Google Sheets)\n- An OpenAI or OpenRouter API key\n\n## How to customize the workflow\nYou can easily customize the \"Generate Victory Message\" prompt to match different themes, like a sci-fi battle, a magic school, or historical events!"},"typeVersion":1},{"id":"96d8822c-5ff0-4d84-b631-d677546d4491","name":"Sticky Note1","type":"n8n-nodes-base.stickyNote","position":[-16,-224],"parameters":{"color":7,"width":384,"height":400,"content":" Receive answer & find pending quest"},"typeVersion":1},{"id":"545d51d1-4be2-40cc-99c3-44999b59fb06","name":"Sticky Note2","type":"n8n-nodes-base.stickyNote","position":[368,-224],"parameters":{"color":7,"width":336,"height":400,"content":"Check answer \n(No AI needed!)"},"typeVersion":1},{"id":"fed8beee-3200-4df8-95bf-4ce09b2ec7a8","name":"Sticky Note3","type":"n8n-nodes-base.stickyNote","position":[704,-224],"parameters":{"color":7,"width":560,"height":432,"content":"Update status to 'solved' & Generate victory fanfare"},"typeVersion":1},{"id":"73beae1f-08d6-4fa2-b3cc-3e3dd6efe9ac","name":"Sticky Note4","type":"n8n-nodes-base.stickyNote","position":[704,208],"parameters":{"color":7,"width":368,"height":288,"content":"Return miss message"},"typeVersion":1}],"active":false,"pinData":{},"settings":{"executionOrder":"v1"},"versionId":"814761bd-8e39-4ef3-ad1c-86d0804185b8","connections":{"Check Answer":{"main":[[{"node":"Update Quest Status","type":"main","index":0}],[{"node":"Return Miss Message","type":"main","index":0}]]},"Quiz Answer Form":{"main":[[{"node":"Find Pending Quest","type":"main","index":0}]]},"Find Pending Quest":{"main":[[{"node":"Check Answer","type":"main","index":0}]]},"Update Quest Status":{"main":[[{"node":"Generate Victory Message","type":"main","index":0}]]},"OpenRouter Chat Model":{"ai_languageModel":[[{"node":"Generate Victory Message","type":"ai_languageModel","index":0}]]}}},"lastUpdatedBy":1,"workflowInfo":{"nodeCount":12,"nodeTypes":{"n8n-nodes-base.if":{"count":1},"n8n-nodes-base.code":{"count":1},"n8n-nodes-base.stickyNote":{"count":5},"n8n-nodes-base.formTrigger":{"count":1},"n8n-nodes-base.googleSheets":{"count":2},"@n8n/n8n-nodes-langchain.chainLlm":{"count":1},"@n8n/n8n-nodes-langchain.lmChatOpenRouter":{"count":1}}},"status":"published","readyToDemo":null,"user":{"name":"TAKUTO ISHIKAWA","username":"onepiceace","bio":"","verified":true,"links":[""],"avatar":"https://gravatar.com/avatar/e56014588b58cfd4e84ccdff3fc526acb7b46d95e1b150ff658a445c696c97b5?r=pg&d=retro&size=200"},"nodes":[{"id":18,"icon":"file:googleSheets.svg","name":"n8n-nodes-base.googleSheets","codex":{"data":{"alias":["CSV","Sheet","Spreadsheet","GS"],"resources":{"generic":[{"url":"https://n8n.io/blog/love-at-first-sight-ricardos-n8n-journey/","icon":"❤️","label":"Love at first sight: Ricardo’s n8n journey"},{"url":"https://n8n.io/blog/why-business-process-automation-with-n8n-can-change-your-daily-life/","icon":"🧬","label":"Why business process automation with n8n can change your daily life"},{"url":"https://n8n.io/blog/automatically-adding-expense-receipts-to-google-sheets-with-telegram-mindee-twilio-and-n8n/","icon":"🧾","label":"Automatically Adding Expense Receipts to Google Sheets with Telegram, Mindee, Twilio, and n8n"},{"url":"https://n8n.io/blog/supercharging-your-conference-registration-process-with-n8n/","icon":"🎫","label":"Supercharging your conference registration process with n8n"},{"url":"https://n8n.io/blog/creating-triggers-for-n8n-workflows-using-polling/","icon":"⏲","label":"Creating triggers for n8n workflows using polling"},{"url":"https://n8n.io/blog/no-code-ecommerce-workflow-automations/","icon":"store","label":"6 e-commerce workflows to power up your Shopify s"},{"url":"https://n8n.io/blog/migrating-community-metrics-to-orbit-using-n8n/","icon":"📈","label":"Migrating Community Metrics to Orbit using n8n"},{"url":"https://n8n.io/blog/automate-google-apps-for-productivity/","icon":"💡","label":"15 Google apps you can combine and automate to increase productivity"},{"url":"https://n8n.io/blog/your-business-doesnt-need-you-to-operate/","icon":" 🖥️","label":"Hey founders! 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