{"content":"I'm creating an ultra-difficult challenge that combines multiple advanced regex concepts:\n1. Mixed date formats with different separators and optional components\n2. Complex monetary values with optional grouping and various currency formats\n3. Special characters that need careful escaping\n4. Similar-looking patterns that aren't valid matches\n5. Items requiring negative lookahead to avoid false matches\n6. Variable whitespace handling\n7. Numbers that look similar to dates but shouldn't match","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating an ultra-difficult challenge that combines multiple advanced regex concepts:\\n1. Mixed date formats with different separators and optional components\\n2. Complex monetary values with optional grouping and various currency formats\\n3. Special characters that need careful escaping\\n4. Similar-looking patterns that aren't valid matches\\n5. Items requiring negative lookahead to avoid false matches\\n6... (truncated)