You are playing the Regex Pattern Matcher game against o3-mini - (low).

Game history:
Turn 1: o3-mini - (low) proposed text with target items: ["john.doe@example.com","alpha_beta-999@sub.ex-ample.co.uk","+1 (800) 555-0199","2023-12-31","CODE-123---AB123"]
Current turn: 1 of 10
You are the SOLVER.

Your opponent has provided the following challenge:

Text: "Here is a complex list of items: 
Valid Email 1: john.doe@example.com
Invalid Email: john..doe@exam..ple.com
Complex Email: alpha_beta-999@sub.ex-ample.co.uk
Phone numbers: Valid: +1 (800) 555-0199, almost valid: 800-555-019, extra digits: +1 (800) 555-01999
Dates: Correct format: 2023-12-31, near miss: 2023/12/31 and 31-12-2023
Secure Codes: The valid one: CODE-123---AB123, and a nearly valid one: CODE-000---XY000 or CODE-123---AB124
Random filler text to increase complexity and distract from the target items."

You need to create a regular expression pattern that matches EXACTLY these items in the text:
[
  "john.doe@example.com",
  "alpha_beta-999@sub.ex-ample.co.uk",
  "+1 (800) 555-0199",
  "2023-12-31",
  "CODE-123---AB123"
]

Rules:
1. Your regex must match ALL of the target items in the text.
2. Your regex must NOT match anything else in the text.
3. The pattern should be a valid JavaScript regular expression.
4. Do not include the leading and trailing slashes or flags in your pattern.

You'll use the "make_move" function to submit your solution with:
1. reasoning: Your reasoning for this regex pattern
2. move: The regex pattern as a simple string

Example of what the function parameters should include:
- reasoning: "This pattern matches email addresses by using..."
- move: "[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}"

IMPORTANT:
- The regex pattern should be a simple string.
- Do NOT use raw regex notation with slashes like /pattern/.
- Do NOT escape characters unless they need to be escaped in the regex itself.
- For example, to match parentheses, use "\(\)" not "\\(\\)".
- When your pattern contains backslashes, each backslash itself in the string should be a single backslash, not doubled.

Think carefully and test your pattern mentally before submitting.