{"content":"I'm proposing a highly challenging regex matching challenge that combines multiple complex pattern types in a single text sample. The sample includes emails with plus tags and hyphenated subdomains requiring careful escaping, phone numbers with country and extension parts, various date formats with different separators (slashes, dots, and hyphens), IPv6 addresses in both raw and bracketed formats, MAC addresses with hyphen separators, and nested parentheses which require handling of nested groups possibly using backreferences, along with extra text that could confuse a naive regex. This variety and the need for strict matching against these complex patterns will challenge even the most advanced regex skills.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm proposing a highly challenging regex matching challenge that combines multiple complex pattern types in a single text sample. The sample includes emails with plus tags and hyphenated subdomains requ... (truncated)