{"content":"I'm creating an extremely difficult challenge that combines several complex patterns, including emails with various formats, phone numbers with international codes, date formats with different separators, and identifiers with mixed character sets. The patterns require not only escaping but also advanced regex techniques such as lookaheads, lookbehinds, and backreferences, ensuring a challenging regex task for any matcher.","function_call":{"name":"make_move","arguments":"{\"reasoning\":\"I'm creating an extremely difficult challenge that combines several complex patterns, including emails with various formats, phone numbers with international codes, date formats with different separators, and identifiers with mixed character sets. The patterns require not only escaping but also advanced regex techniques such as lookaheads, lookbehinds, and backreferences, ensuring a challenging regex task for any matcher.\",\"move\":{\"text\":\"Emails: john.doe+test@example-123.com, jane_sm... (truncated)