You are playing the Regex Pattern Matcher game against gpt-4o-mini.

Game history:
Turn 1: gpt-4o-mini proposed text with target items: ["john.doe@example.com","jane_smith@company.co.uk","+1-800-555-0199","(415) 555-0123","2023/10/05","01-15-2024","2024.03.30","ID1234AB-XZY","ID-5678-XYZ"]
o3-mini - (high) provided pattern: ^(?:john\.doe@example\.com|jane_smith@company\.co\.uk|\+1-800-555-0199|\(415\) 555-0123|2023/10/05|01-15-2024|2024\.03\.30|ID1234AB-XZY|ID-5678-XYZ)$ (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 t... (truncated)