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Logic Grid Puzzle
A real 'who owns the zebra'-style logic-grid puzzle with a proven unique solution
Unify Dynamics LLC
Tools7read-only
Sign-inNoneno account, no key
Data keptNoneprocessed in memory
PriceFreeoptional Pro limits
StatusLiveMCP + REST
Works withMCP · RESTany agent
Try asking
Real questions, and the tools your agent calls to answer them.
Give me a logic grid puzzle
Tools called
new_puzzleThe red house is at position 2
Tools called
make_deductionGive me a hint
Tools called
get_hintCheck my answers so far
Tools called
check_solutionShow me the puzzle and my progress
Tools called
render_puzzleI give up, show the solution
Tools called
reveal_solutionHow do logic grid puzzles work?
Tools called
rules_infoAbout
Logic Grid Puzzle is a fully local, playable logic-grid puzzle generator and solver. new_puzzle builds a puzzle (difficulty controls grid size and category count) whose clue set is proven, via an exact backtracking solve, to pin down exactly one solution. make_deduction records a claimed category/value/position fact and checks it against the real answer. get_hint reveals one logically forced cell together with the proof that no other position works. check_solution reports progress, render_puzzle shows the clues and your partial grid, reveal_solution gives the full answer, and rules_info explains the clue types. Stateless -- no server-side game storage, the caller passes state between calls. Keyless; fully local; zero upstream calls; nothing stored.
Sources: Original, hand-authored content. Fully local, zero upstream calls.
Privacy
The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.
Data not collectedNo account, no profile, no stored prompts or results.
What it can do
7 tools, grouped by job. Every one is read-only or compute-only.
- New puzzleGenerate a new logic grid puzzle with a proven unique solution, and return its clues.
- Make deductionRecord a deduction (category, value, position) and check it against the real solution.
- Get hintReveal one logically forced deduction not yet recorded, with the proof that no other position for that value is consistent with the puzzle's clues.
- Check solutionReport how many cells have been filled, whether everything filled so far is correct, and whether the puzzle is fully solved.
- Render puzzleRender the clues and the player's current partial grid as human-readable text.
- Reveal solutionReveal the full solution, position by position -- use for a clean end-of-game reveal or a give-up.
- Rules infoExplain logic grid puzzles: how to play, the clue types, the uniqueness guarantee, and how hints work.
Information
PublisherUnify Dynamics LLC
CategoryGames & entertainment
LanguagesEnglish
Built forGlobal
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpoint
https://logicgridpuzzle.connectorbay.com/mcpREST APIopenapi.json
CountryWorldwide
Connect it to your agent
Three ways in, the same 7 tools.
MCP (Claude, Cursor, Windsurf, VS Code, any MCP client)
https://logicgridpuzzle.connectorbay.com/mcpREST
POST https://logicgridpuzzle.connectorbay.com/v1/tools/<tool>OpenAI function calling
https://connectorbay.com/openai/logicgridpuzzle.jsonOpenAI-compatible chat
https://connectorbay.com/v1/chat/completions · how it works- Add the MCP URL in your client's connector, MCP or integration settings (streamable HTTP, no OAuth).
- Key: none needed.
- Ask a question; the agent picks the right tool and answers from the live data.
Logic Grid Puzzle connector: questions and answers
What is the Logic Grid Puzzle connector?
Logic Grid Puzzle is a fully local, playable logic-grid puzzle generator and solver. It is a hosted MCP server with 7 tools such as New puzzle, Make deduction, Get hint, Check solution, Render puzzle, Reveal solution, published by Unify Dynamics LLC. It is independent and not affiliated with Logic Grid Puzzle.
How do I connect Logic Grid Puzzle to Claude, ChatGPT or Cursor?
Add the MCP endpoint https://logicgridpuzzle.connectorbay.com/mcp to your client's MCP, connector or integration settings (streamable HTTP, no OAuth). For REST, POST JSON to https://logicgridpuzzle.connectorbay.com/v1/tools/<tool>; the OpenAPI description is at /openapi.json. For OpenAI function calling, load https://connectorbay.com/openai/logicgridpuzzle.json.
Do I need an account or API key for Logic Grid Puzzle?
No. The connector needs no sign-in and no key. An optional Pro key only raises rate limits.
Is Logic Grid Puzzle read-only?
Yes. Every tool reads or computes. Nothing is created, changed, sent, paid or deleted in your account.
Is the Logic Grid Puzzle connector free?
Yes. It is free to use within the published rate limits; an optional Pro key raises them. There is no account to create.
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Documentation
Back to topWhat Logic Grid Puzzle is for
A fully local, PLAYABLE "who owns the zebra"-style logic-grid puzzle generator and solver. N positions in a row, each of several attribute categories (color, pet, drink, hobby, job -- drawn from a bank) assigned one distinct value per position; a set of clues logically pins down the one true arrangement.
What it does
new_puzzle builds a puzzle at a chosen difficulty (which controls grid size and category count) and
returns its clues. The solution is generated first, then clues are added one at a time from a pool of
every true statement about it, re-checking after each addition with an exact backtracking solver until
exactly one assignment satisfies everything -- then redundant clues are stripped out. This means the clue
list you're given is both SUFFICIENT (a unique solution is provably reachable) and roughly MINIMAL (no
leftover clue is dead weight).
make_deduction records a claimed (category, value, position) fact and checks it against the real hidden
solution. get_hint finds a cell whose position is the UNIQUE one consistent with every clue -- and
proves it, by checking that forcing that value to any other position makes the clue set unsatisfiable --
rather than just revealing an entry from a precomputed answer key. check_solution reports progress;
render_puzzle shows clues and your partial grid (never the solution); reveal_solution gives the full
answer for an end-of-game reveal or give-up.
How state works
There is no server-side game storage. Every call takes the full puzzle state (the exact object returned
by the previous call) and returns a new one. The real solution necessarily lives inside state -- don't
print the raw state to the player; use render_puzzle instead.
What it is not
Not a puzzle with an unverified or merely-probable unique solution -- every puzzle's uniqueness (and every hint's forced-ness) is proven by an exact, exhaustive constraint-satisfaction search, not assumed.
Privacy policy
Back to topLogic Grid Puzzle — Privacy Policy
Effective 28 September 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.
What Logic Grid Puzzle is. Logic Grid Puzzle is a connector (an MCP server and REST API) that AI assistants and personal agents call on your behalf to run a local logic-grid puzzle game — generating a puzzle, checking deductions, and computing hints.
What we receive. The arguments of each tool call — the puzzle state you (via your assistant) pass back on every call, your deductions, and the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant, and a Pro API key if you have one) — plus standard server logs.
Everything is computed locally and nothing is stored. Logic Grid Puzzle has no database and no server-side game storage of any kind. The entire puzzle state — including the solution — lives only in your conversation with your assistant, which passes it back to us on each call and receives an updated copy in the response. We do not persist it, log it, or use it for anything beyond computing that one response. No request is forwarded to any third party — there is no upstream call at all.
What we do not receive or store. We do not receive your name, your conversation with the assistant beyond the bare puzzle-state argument, or anything else about you. Each request is answered independently. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting-provider access logs (IP addresses and request paths, not request bodies) are retained for up to 30 days for security and abuse prevention.
Sub-processors. None — computation is entirely local to this server. Hosting: Vercel (United States regions).
Legal bases and your rights. Our processing is necessary to provide the service you request through your assistant. Because we store no personal data beyond short-lived logs, requests to access, correct or delete personal data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. We do not sell or share personal information and do not use your data to train models.
Children. Logic Grid Puzzle is a general-audience service operated by the adult using the assistant.
Changes. We will post changes here with a new effective date.
Terms of service
Back to topLogic Grid Puzzle — Terms of Service
Effective 28 September 2026. These terms govern use of the Logic Grid Puzzle connector ("the Service") operated by Unify Dynamics LLC ("we", "us").
- The Service. Logic Grid Puzzle is a stateless, playable logic-grid puzzle generator and solver, accessed through an AI assistant or directly over MCP or HTTP. There is no server-side game storage: the caller holds and passes puzzle state between calls.
- Entertainment only. Logic Grid Puzzle is provided for entertainment purposes. Nothing in it constitutes advice of any kind.
- Acceptable use. Automated use within the published rate limits is welcome. Do not use the Service to disrupt, overload, or reverse-engineer the underlying infrastructure.
- Availability. The Service is provided "as is" without warranty. We may change, limit, or discontinue it at any time.
- Data. Our Privacy Policy describes what we process. In short: puzzle state is computed statelessly from what you send us and nothing is stored.
- Pro keys. Optional Pro API keys are issued at our discretion, are personal to the holder, and may be revoked for abuse.
- Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss, injury, or damage arising from use of, or reliance on, the Service. Our total liability is limited to US $100.
- Governing law. California law; venue in San Mateo County, California.
- Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/logicgridpuzzle
Support
Back to topLogic Grid Puzzle support
Email agent@connectorbay.com. We answer within two business days.
- MCP endpoint:
https://logicgridpuzzle.connectorbay.com/mcp - REST API:
https://logicgridpuzzle.connectorbay.com/openapi.json - Live status: https://logicgridpuzzle.connectorbay.com/health
When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Logic Grid Puzzle never asks for them.