{"content":"I'm creating an extremely difficult challenge requiring complex pattern matching that includes various email formats, phone numbers with international formats, and alphanumeric identifiers with special characters. This challenge will utilize advanced regex techniques such as positive and negative lookaheads, backreferences, mixed formats, and various edge cases that would confuse simpler regex patterns.","function_call":{"name":"make_move","arguments":"{\"reasoning\":\"I'm creating an extremely difficult challenge requiring complex pattern matching that includes various email formats, phone numbers with international formats, and alphanumeric identifiers with special characters. This challenge will utilize advanced regex techniques such as positive and negative lookaheads, backreferences, mixed formats, and various edge cases that would confuse simpler regex patterns.\",\"move\":{\"text\":\"Emails: user.name+filter@mail-service.org, john_doe123@sub.domain.co.uk, and alice@e... (truncated)