Judge AI math RPG answers with OpenAI/OpenRouter and update quests in Google Sheets

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1. Workflow Overview

Judge AI math RPG answers and update quest status in Google Sheets Who it's for This template is for educators, parents, or self learners who want to gamify their study routines. This is Part 2 of ...

Best for

Personal Productivity automation workflows
Multimodal AI automation workflows
intermediate n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.lmchatopenrouter, n8n-nodes-base.formtrigger, n8n-nodes-base.code, @n8n/n8n-nodes-langchain.chainllm, n8n-nodes-base.googlesheets, n8n-nodes-base.if, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by TAKUTO ISHIKAWA.

Original n8n.io source

1.1 Workflow description

Title: Judge AI math RPG answers with OpenAI/OpenRouter and update quests in Google Sheets
Workflow name: Judge AI math RPG answers with OpenAI/OpenRouter and update quests in Google Sheets

Judge AI math RPG answers and update quest status in Google Sheets

Who it's for

This 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.

How it works

When 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. If 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.

How to set up

Ensure you have set up Part 1 of this system (Generate AI math RPG quests from study logs).
Connect your Google Sheets credential and replace ENTER_YOUR_SPREADSHEET_ID_HERE with your actual Sheet ID.
Connect your OpenAI or OpenRouter credential in the LLM node.
Open the "Quiz Answer Form" and enter your user ID and answer to test the battle!

Requirements

A Google account (for Google Sheets)
An OpenAI or OpenRouter API key

How to customize the workflow

You can easily customize the "Generate Victory Message" prompt to match different themes, like a sci-fi battle, a magic school, or historical events!

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - OpenRouter Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenRouter - lmChatOpenRouter
Config choices: Version 1

Block 2 - Quiz Answer Form

Type / Role: n8n-nodes-base.formTrigger - formTrigger
Config choices: Version 2.3

Block 3 - Return Miss Message

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 4 - Generate Victory Message

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.7

Block 5 - Find Pending Quest

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 6 - Check Answer

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.3

Block 7 - Update Quest Status

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 8 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 10 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 11 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 12 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Judge AI math RPG answers with OpenAI/OpenRouter and update quests in Google Sheets
Complexity	intermediate
Nodes	12
Categories	Personal Productivity, Multimodal AI
Author	TAKUTO ISHIKAWA
Published	20 Mar 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/14194/14194.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Personal Productivity workflows Multimodal AI workflows

Frequently asked questions

What does Judge AI math RPG answers with OpenAI/OpenRouter and update quests in Google Sheets do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Personal Productivity, Multimodal AI use case.

TAKUTO ISHIKAWA

4 workflows

Nodes

@n8n/n8n-nodes-langchain.lmchatopenrouter n8n-nodes-base.formtrigger n8n-nodes-base.code @n8n/n8n-nodes-langchain.chainllm n8n-nodes-base.googlesheets n8n-nodes-base.if n8n-nodes-base.stickynote

Complexity

intermediate

Published 20 Mar 2026

Likes 0

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Install path: /data/workflows/14194/14194.json

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Judge AI math RPG answers with OpenAI/OpenRouter and update quests in Google Sheets

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Judge AI math RPG answers and update quest status in Google Sheets

Who it's for

How it works

How to set up

Requirements

How to customize the workflow

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - OpenRouter Chat Model

Block 2 - Quiz Answer Form

Block 3 - Return Miss Message

Block 4 - Generate Victory Message

Block 5 - Find Pending Quest

Block 6 - Check Answer

Block 7 - Update Quest Status

Block 8 - Sticky Note

Block 9 - Sticky Note1

Block 10 - Sticky Note2

Block 11 - Sticky Note3

Block 12 - Sticky Note4

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions