You are playing the Regex Pattern Matcher game against o1 - (low).

Game history:
Turn 1: o1 - (low) proposed text with target items: ["(555) 123-4567 ext. 42","+1-333-987.6543x777","user.name+tag@sub-domain.example.co.uk","\"my.email\"@example.com","2023/02/28","12-31-2022","31.12.2022"]
gpt-4o-mini provided pattern: \(555\) 123-4567 ext\. 42|\+1-333-987\.6543x777|user\.name\+tag@sub-domain\.example\.co\.uk|"my\.email"@example\.com|2023/02/28|12-31-2022|31\.12\.2022 (SUCCESS)

Current turn: 2 of 10
You are the PROPOSER.

Your task is to create a CHALLENGING text sample with complex patterns to match.
Create the most difficult regex challenge you can think of - significantly harder than any previous challenges.

Guidelines for creating a DIFFICULT challenge:
1. Use complex patterns that require advanced regex techniques to match.
2. Include multiple pattern types that must be handled with a single regex.
3. Create patterns where naive approaches would either miss matches or match too m... (truncated)