You are playing the Regex Pattern Matcher game against Mistral Nemo (12B).

Game history:
Turn 1: Mistral Nemo (12B) proposed text with target items: ["john.doe+tag@example.com","jane.smith-123@co.uk","user123@domain-name.info","ABC-123-XYZ","DEF-456-UVW","GHI-789-abc","JKL-012-DEF","2022/01/01","2022-02-03","2022.03.04","+1 (123) 456-7890","+44 20-7123-4567","09876543210"]
o1 - (low) provided pattern: ([a-zA-Z0-9._+\-]+@[a-zA-Z0-9.\-]+\.[a-zA-Z]{2,}|[A-Z]{3}-\d{3}-[A-Za-z]{3}|\d{4}([/\-\.])\d{2}\1\d{2}|\+1 \(123\) 456-7890|\+44 20-7123-4567|09876543210) (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 ... (truncated)