ChatGPT Plugin

Sudoku by Puzzle Fuel

The daily sudoku that teaches

Brand: Puzzle Fuel

Category: Pending
Primary Subcategory: Pending

Integration details

Description

Get today's puzzle at any of six difficulties — from Beginner to Diabolical — on a board you can actually play, or generate a fresh puzzle whenever you want one. More importantly, learn how to solve: every hint names the real technique in play and teaches you to spot it yourself, drawn from our Sudoku University teaching program and its twenty-technique glossary.

Integration type: Plugin
Verification status: Not applicable
Platform: ChatGPT
Category: Pending
Primary Subcategory: Pending
Secondary Subcategories: None listed
Brand: Puzzle Fuel
Access: No account required
First tracked: 2026-10-08
Tool count: 5
Geography: US

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Primary Subcategory

Competitive lineup

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Tools

5 tools agents can invoke

Use this when someone wants to know whether their sudoku is right so far, where their mistake is, or why their grid will not finish. Reports duplicate digits, entries that contradict the unique solution, and how many cells remain. Do not use to get the next move — use explain_next_move.
check_sudoku
Use this when someone asks what a named sudoku technique is, how to spot it, or how to apply it — naked single, hidden single, pointing pair, box/line reduction, naked and hidden pairs, triples and quads, X-wing, swordfish, skyscraper, two-string kite, empty rectangle, Y-wing, XYZ-wing, W-wing, simple colouring, unique rectangle. Returns a structured lesson: what the move is, the tell that says to look for it, and the procedure. Call with no argument to list every technique in difficulty order. Do not use to get the next move on a board someone is playing — use explain_next_move for that.
explain_sudoku_technique
Use this when someone is stuck on a sudoku they are working on, asks for a hint, asks what to do next, or asks why a particular move works. Runs a real solver across twenty named human techniques — naked and hidden singles, pointing pairs, X-wing, swordfish, Y-wing, unique rectangle and more — and returns the next step that genuinely follows, with the logic behind it. Needs both the original puzzle and the current board. Do not use to describe a technique in the abstract — use explain_sudoku_technique for that. Do not guess a move yourself; call this tool.
explain_next_move
Use this when someone has already played today's daily and wants another puzzle, wants a different difficulty to practise on, or asks for a random or practice sudoku. Do not use when they asked for today's puzzle or the daily — use get_daily_sudoku for that.
new_sudoku
Use this when someone asks for today's sudoku, the daily sudoku, a sudoku to play right now, or a sudoku at a named difficulty. Shows the same numbered edition published on puzzlefuel.com that day, on a playable board. Do not use for a board the user has already started — use explain_next_move or check_sudoku for a puzzle in progress. Do not use for crosswords, word ladders, wordle-style games or any non-sudoku puzzle.
get_daily_sudoku

FAQs