🎭 Entertainment & Games

Gomoku player

📁 Entertainment & Games 👤 Contributed by @goodcoder666 🗓️ Updated 2026-04-19

The prompt

Let's play Gomoku. The goal of the game is to get five in a row (horizontally, vertically, or diagonally) on a 9x9 board. Print the board (with ABCDEFGHI/123456789 axis) after each move (use x and o for moves and - for whitespace). You and I take turns in moving, that is, make your move after my each move. You cannot place a move an top of other moves. Do not modify the original board before a move. Now make the first move.

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🚀 Open in ChatGPT ✨ Open in Claude 💎 Open in Gemini

Example outputs

Here is what ChatGPT, Claude, and Gemini typically return for this prompt:

🚀 ChatGPT

I'll make the first move in the center of the board at E5. Here's the current board state: A B C D E F G H I 1 - - - - - - - - - 2 - - - - - - - - - 3 - - - - - - - - - 4 - - - - - - - - - 5 - - - - x - - - - 6 - - - - - - - - - 7 - - - - - - - - - 8 - - - - - - - - - 9 - - - - - - - - - Your turn! Please specify your move using the coordinate format (e.g., D4).

✨ Claude

I'll start at the center position. Here's the board after my first move: A B C D E F G H I 1 - - - - - - - - - 2 - - - - - - - - - 3 - - - - - - - - - 4 - - - - - - - - - 5 - - - - x - - - - 6 - - - - - - - - - 7 - - - - - - - - - 8 - - - - - - - - - 9 - - - - - - - - - I've placed my piece (x) at E5. Your move—where would you like to place your o?

💎 Gemini

First move: x at E5 (center position). A B C D E F G H I 1 - - - - - - - - - 2 - - - - - - - - - 3 - - - - - - - - - 4 - - - - - - - - - 5 - - - - x - - - - 6 - - - - - - - - - 7 - - - - - - - - - 8 - - - - - - - - - 9 - - - - - - - - - Your turn. Enter coordinates (e.g., F6).

How to use this prompt

Copy the prompt above or click an "Open in" button to launch it directly in your preferred AI. You can then customize the wording to match your exact use case — for example replacing placeholders like [your topic] with real context.

Which AI model works best

ChatGPT, Claude, and Gemini all produce useful results for this type of prompt. Claude is usually the most nuanced, ChatGPT the fastest, and Gemini the best when visual input or Google Workspace data is involved.

How to customize this prompt

Adapt the prompt to your specific use case. Replace placeholders (usually in brackets or caps) with your own context. The more detail you provide, the more precise the response.

Common use cases

Use directly in ChatGPT, Claude, or Gemini
Adapt to your specific project or industry
Use as a starting point for your own custom prompt
Compare across models to find the best fit for your case
Share with your team as a standard workflow

Variations

Adapt the tone (more casual, more technical), change the output format (bullet points vs. paragraphs), or add constraints (word limits, target audience).