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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minutePickuma’s Gomoku arena lets two AI agents take turns on a shared board through the Model Context Protocol (MCP): an agent connects, reads the position, and chooses a move. The author’s September 22, 2026 account describes a Renju match and server-side move validation; the project listing also describes free-style Gomoku and other ways to play. Rules and match settings matter, so this is not one universal format for every Gomoku game.
How the MCP match works
The workflow described by Pickuma is deliberately simple: connect an MCP client to the arena, let the active agent inspect the board, and have it select a move. The board is shared, so each agent responds to the position left by the previous move rather than playing from a private game state. According to the author, no additional software needs to be installed for the MCP workflow.
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Pickuma’s article includes a Claude-versus-Codex example. The article says a persistent connection URL can be obtained through the project’s join page and gives a Claude Code HTTP MCP example, but connection endpoints and client commands can change. Treat those setup details as specific to the article, not as a guarantee that the same URL or command remains current.
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“Gomoku” can refer to different rule sets. The match in Pickuma’s account uses Renju, while the project listing describes both Renju and configurable free-style play. Check the selected mode before interpreting a win or an invalid move.
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Renju
In the author’s description of the arena’s Renju mode, Black wins with exactly five consecutive stones. Black may not make an overline, a double-four, or a double-three; White is unrestricted. The author says the server validates moves and rejects forbidden ones without consuming the player’s turn, while recording rejections. These are reported arena behaviors, not independently verified guarantees about the service’s current runtime.
Free-style Gomoku
The project listing describes free-style mode as a format in which five or more stones in a row wins. That differs from Renju’s restrictions on Black, so a move legal in one mode may be forbidden or have a different result in the other.
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Turn clock and the reported match
Pickuma reports a 120-second limit for each move. In the article’s account, the clock starts when the player whose turn it is first reads the board, and exceeding the limit loses. This is the author’s description of the arena, not a verified current service guarantee.
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Ways to fill the seats
The project listing describes several player types and configurations. The options below reflect that listing; they are not a ranking of strength, cost, or reliability.
| Seat or approach | What the listing describes | Practical consideration |
|---|---|---|
| Human | A person can play in the arena. | Useful for a human-versus-agent game or a manual opponent; the listing does not establish a particular interface or performance level. |
| Search engine | Options include greedy scoring, minimax with alpha-beta pruning, and Monte Carlo tree search (MCTS). | These are different search approaches; the listing does not provide comparable strength or speed measurements. |
| Model provider | Provider interfaces include OpenAI-compatible and Jev-compatible options. | Provider availability and configuration may vary; the listing is not independent confirmation of current provider support. |
| MCP agent | An external agent connects through MCP, reads the board, and chooses moves. | The agent’s decisions depend on its own model, prompts, and configuration, which are not established by the arena description alone. |
What leaderboard model labels do—and do not—establish
The author says MCP initialization can reveal the client harness through clientInfo, but does not reliably identify the underlying model. Model and effort labels on the leaderboard are self-reported. As a result, a leaderboard entry should not be treated as protocol-verified proof of which model played. The cited article does not provide population-level win rates or establish that one model is generally stronger than another.
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Provider keys and remote inference
The project listing discusses provider configuration and a relay for remote inference. It warns that anyone who can reach a server configured with a provider key may be able to spend against that key. If deploying a server, access controls and key handling are therefore operational concerns, not merely setup details. The listing does not establish a particular cost, security configuration, or current provider availability.
Sources and scope
- Pickuma’s DEV Community article, published September 22, 2026, is the first-person account of the MCP workflow, Renju match, clock, validation behavior, and identity limitations.
- The Glama project listing for gomoku-arena by VdustR describes available rule modes, player types, engine methods, provider interfaces, and key-handling considerations.
The article and listing describe the project; neither provides independent testing of a current match or establishes ongoing service availability.
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