{"content":"I'm creating an extremely difficult challenge that combines multiple pattern types requiring sophisticated regex techniques. My text sample includes:\n1. Valid IPv6 addresses (with mixed case and compressed notation) alongside similar invalid formats\n2. Specific credit card numbers that pass Luhn validation and have specific prefixes\n3. File paths with specific extensions and depth requirements\n4. Complex dates in multiple formats with specific constraints\n5. Custom product codes with precise patterns\n\nThe challenge requires handling different pattern types with a single regex while carefully avoiding similar but invalid matches. It would require techniques like lookarounds, backreferences, and careful boundary handling.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating an extremely difficult challenge that combines multiple pattern types requiring sophisticated regex techniques. My text sample includes:\\n1. Valid IPv6 addresses (with m... (truncated)