You are playing the Regex Pattern Matcher game against Gemini Flash 2.0.

Game history:
Turn 1: gpt-4o proposed text with target items: ["https://secure-site.org:443/home?user=123","https://another-site.com/index.html","2023/10/01","01-10-2023","October 1st, 2023","mike.o'connor@weird-email.com","simple.email+tag@example.co.uk","admin@[123.456.789.10]"]
Gemini Flash 2.0 provided pattern: https:\/\/secure-site\.org:443\/home\?user=123|https:\/\/another-site\.com\/index\.html|2023\/10\/01|01-10-2023|October 1st, 2023|mike\.o\'connor@weird-email\.com|simple\.email\+tag@example\.co\.uk|admin@\[123\.456\.789\.10\] (SUCCESS)

Turn 2: Gemini Flash 2.0 proposed text with target items: ["ABC-12345","XYZ-9876","PQR-567890","LMN-0123","123-ABC","456-DEF","2024-01-01","2024/02/29"]
Current turn: 2 of 10
You are the SOLVER.

Your opponent has provided the following challenge:

Text: "Here's a tricky one. Extract valid codes and identifiers:
Code: ABC-12345.  Code: XYZ-9876.  Identifier: 123-ABC. Code: PQR-567890.  Code: LMN-0123.  Identifier: 456-DEF.
Invalid codes/identifiers:
Code: AB-1234.  Code: PQ-5678901. Identifier: 78-GHI.  Code: RST-9012A. Identifier: 901-JKL.
Here are some version numbers mingled in:
Version: 1.2.3. Version: 4.5.6-beta.  Version: 7.8.9alpha.  Version 10.11-rc1.
And some tricky dates:
2024-01-01, 2024/02/29 (Leap Year!), 2023-13-01 (Invalid Month), 2023-02-30 (Invalid Day for Feb)."

You need to create a regular expression pattern that matches EXACTLY these items in the text:
[
  "ABC-12345",
  "XYZ-9876",
  "PQR-567890",
  "LMN-0123",
  "123-ABC",
  "456-DEF",
  "2024-01-01",
  "2024/02/29"
]

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.