I'm creating an extremely difficult challenge that combines:
1. Complex email addresses with nested quotes and special characters
2. IPv6 addresses with different compression patterns
3. Nested JSON-like structures with escaped quotes
4. Time ranges with timezone offsets including minutes
5. Complex product codes with variable separators
6. URLs with special characters and unicode
7. Similar-looking patterns that require precise matching
8. Dates with inconsistent formats and different separator... (truncated)