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

Game history:
Turn 1: o1 - (low) proposed text with target items: ["someone+regex@very-tricky.domain.co.uk","+1 (234) 567-8901 ext. 123","+44 9876 543210","2023-09-15","09/15/23","15.09.2023","ABC-1234-XYZ","ACTG:123-ef7","C:\\Users\\Public\\Documents\\sample.txt","💻"]
o1 - (high) provided pattern: (?:someone\+regex@very-tricky\.domain\.co\.uk|\+1 \(234\) 567-8901 ext\. 123|\+44 9876 543210|2023-09-15|09\/15\/23|15\.09\.2023|ABC-1234-XYZ|ACTG:123-ef7|C:\\Users\\Public\\Documents\\sample\.txt|💻) (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 ... (truncated)