{"content":"I'm creating an extremely difficult challenge that includes multiple complex patterns requiring advanced regex features such as escaping special characters, handling optional components, varied delimiters, and embedded JSON. The text sample includes a quoted email with an IPv6 domain, a phone number with extended digits, an ISO timestamp with fractional seconds, a URL with query parameters and a fragment, a compact IPv6 address, and a nested JSON object. This should be significantly harder than previous challenges and cover multiple edge cases.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating an extremely difficult challenge that includes multiple complex patterns requiring advanced regex features such as escaping special characters, handling optional components, varied delimiters, and embedded JSON. The text sample includes a quoted email with an IPv6 domain, a phone number with extended digits, an ISO timestamp with fractional seconds, a UR... (truncated)