{"content":"I'm creating an extremely difficult challenge requiring complex pattern matching, including mixed formats, special characters, negative lookahead, and tricky edge cases. The target items are embedded within a large text sample, making it harder to distinguish them from non-matching items. The challenge requires advanced regex techniques, such as backreferences, complex alternation, and variable whitespace handling.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating an extremely difficult challenge requiring complex pattern matching, including mixed formats, special characters, negative lookahead, and tricky edge cases. The target items are embedded within a large text sample, making it harder to distinguish them from non-matching items. The challenge requires advanced regex techniques, such as backreferences, complex alternation, and variable whitespace handling.\", \"move\": {\"text\": \"Contact information: +1 (123) 456-7890, 01234 567890, or... (truncated)