Master MCP by Playing

// Define an MCP tool for your AI agent
server.tool(
  "chess.make_move",
  "Make a chess move on the board",
  {
    from: z.string().describe("Square to move from (e.g., 'e2')"),
    to: z.string().describe("Square to move to (e.g., 'e4')")
  },
  async ({ from, to }) => {
    const result = await game.move({ from, to });
    return {
      success: result.valid,
      board: game.ascii(),
      status: game.isGameOver() ? "Game Over" : "In Progress"
    };
  }
);

// Paste into Claude Desktop settings to start playing
{
  "mcpServers": {
    "mcpchallenge-chess": {
      "url": "https://mcp.mcpchallenge.org/chess/sse"
    }
  }
}