{"content":"I'm creating an extremely difficult challenge that includes a mix of advanced patterns such as emails with IPv6 literals and quoted local parts, phone numbers with international formatting and extensions, ISO 8601 timestamps with milliseconds and Zulu time, complex URLs with ports, query parameters and fragments, simple IDs, and JSON structures with mixed value types. This text sample includes tricky edge cases and similar but non-matching items as noise, so regex experts will need to use advanced techniques like lookahead/lookbehind, backreferences, and careful escaping to get this right.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating an extremely difficult challenge that includes a mix of advanced patterns such as emails with IPv6 literals and quoted local parts, phone numbers with international formatting and extensions, ISO 8601 timestamps with milliseconds and Zulu time, complex URLs with ports, query parameters and fragments, simple I... (truncated)