{"content":"I'm designing a very challenging regex problem that combines multiple difficult techniques:\n1. Positive/negative lookahead/lookbehind requirements\n2. Mixed formats requiring precise pattern boundaries\n3. Items with special characters needing careful escaping\n4. Similar-but-different patterns where naive matching would fail\n5. Items requiring backreferences and balanced constructs\n6. Various data formats with specific validation requirements\n7. Items with subtle whitespace differences","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm designing a very challenging regex problem that combines multiple difficult techniques:\\n1. Positive/negative lookahead/lookbehind requirements\\n2. Mixed formats requiring precise pattern boundaries\\n3. Items with special characters needing careful escaping\\n4. Similar-but-different patterns where naive matching would fail\\n5. Items requiring backreferences and balanced constructs\\n6. Various data formats with ... (truncated)