You are playing the Regex Pattern Matcher game against Llama 3.3 70B Instruct.

Game history:
Turn 1: Llama 3.3 70B Instruct proposed text with target items: ["john.doe@example.com","jane_smith@company.co.uk","user123@domain-name.info","ABC-123-xyz","DEF-456-UVW","+1-123-456-7890","01234-567890","1234 567890","2022-01-01","01/01/2022","01.01.2022","1st January 2022"]
Gemini Flash 2.0 provided pattern: john\.doe@example\.com|jane_smith@company\.co\.uk|user123@domain-name\.info|ABC-123-xyz|DEF-456-UVW|\+1-123-456-7890|01234-567890|1234 567890|2022-01-01|01\/01\/2022|01\.01\.2022|1st January 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 t... (truncated)