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

Game history:
Turn 1: o1 - (low) proposed text with target items: ["fancy+regex@sub.domain.io","john.doe@my-domain.com","jane_doe@some.co.uk","+1(234)567-8901","(234) 567-8901","234-567-8901","2023-12-31","12/31/2023","23:59","ABC-1234-XYZ","DEF_5678_UVW","GHI123JKL"]
Llama 3.3 70B Instruct provided pattern: [a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+.[a-zA-Z]{2,}|\+?\(\d{3}\)?[-\. ]?\d{3}[-\. ]?\d{4}|\d{4}[-/]\d{2}[-/]\d{2}|\d{2}:\d{2}|[A-Z]{3}-\d{4}-[A-Z]{3}|[A-Z]{3}\d{3}[A-Z]{3]|[A-Z]{3}[0-9]{3}[A-Z]{3} (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... (truncated)