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@company.co.uk","user123@domain-name.info","123-456-7890","987-654-3210","2022-10-31","2023/01/01","2024.02.03","$123.45","£678.90","€987.65","'John Doe'","'Jane Smith'","'User123'"]
claude 3.5 sonnet provided pattern: (john\.doe\+tag@example\.com|jane\.smith-123@company\.co\.uk|user123@domain-name\.info|[1987]{3}-[654]{3}-[0-9]{4}|202[234][-/\.](0[123]|10)[-/\.][0123][0-9]|[£$€]\d{3}\.\d{2}|'[A-Z][a-z]+ ([A-Z][a-z]+|\d+)') (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. Includ... (truncated)