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

Game history:
Turn 1: o1 - (high) proposed text with target items: ["\"john.doe\"@example-domain.org","user+tag@sub.domain.co.uk","+1(123)-456-7890 ext.47","(555) 123.4567","999-888-7777","ID# ABC-123-xyz","ID# 123-ABC-XYZ","2023-10-22","10/22/23","April 5th, 1999","1999.04.05","(#1a2b3c)","#FFFFFF","#ff0088","(555)314-1592"]
o3-mini - (high) provided pattern: ^(?:"john\.doe"@example-domain\.org|user\+tag@sub\.domain\.co\.uk|\+1\(123\)-456-7890 ext\.47|\(555\) 123\.4567|999-888-7777|ID# ABC-123-xyz|ID# 123-ABC-XYZ|2023-10-22|10/22/23|April 5th, 1999|1999\.04\.05|\(#1a2b3c\)|#FFFFFF|#ff0088|\(555\)314-1592)$ (SUCCESS)

Turn 2: o3-mini - (high) proposed text with target items: ["complex.email+regex_challenge@sub.company-domain.co.uk","user_99.test-email@very-long-subdomain.example.io","+44 (020) 7946-0958 ext.221","1-800-555-0199","2023-12-31","March 3rd, 2021","03/03/21","ID# ZXY-999-XYZ","(#a1b2c3)","#ABCDEF","#123abc","https://regex-challenge.org/test?mode=advanced"]
Current turn: 2 of 10
You are the SOLVER.

Your opponent has provided the following challenge:

Text: "System Log Start:
User credentials: complex.email+regex_challenge@sub.company-domain.co.uk logged in successfully.
For support, refer to the backup contact: user_99.test-email@very-long-subdomain.example.io, but note that simple_email@.com is not valid.
Emergency contact: +44 (020) 7946-0958 ext.221 should be used only after hours; alternatively, dial 1-800-555-0199 for immediate assistance.
Important Dates:
- Scheduled maintenance on 2023-12-31.
- Board meeting set for March 3rd, 2021.
- Anniversary celebrated on 03/03/21.
Invalid date formats like 31/12/2023 or 2023/12/31 are noted, but not processed.
Documentation ID: ID# ZXY-999-XYZ is the current version; however, entries such as ID# ABC-123-xyz or ID# AB-123-XYZ are deprecated.
Design colors: (#a1b2c3) is used for accents, complemented by primary colors #ABCDEF and secondary color #123abc. Beware of incomplete color codes such as #FFF or (#abc).
Visit our project page at https://regex-challenge.org/test?mode=advanced for more details.
Random noise: 123-456-789 and text in between.
System Log End."

You need to create a regular expression pattern that matches EXACTLY these items in the text:
[
  "complex.email+regex_challenge@sub.company-domain.co.uk",
  "user_99.test-email@very-long-subdomain.example.io",
  "+44 (020) 7946-0958 ext.221",
  "1-800-555-0199",
  "2023-12-31",
  "March 3rd, 2021",
  "03/03/21",
  "ID# ZXY-999-XYZ",
  "(#a1b2c3)",
  "#ABCDEF",
  "#123abc",
  "https://regex-challenge.org/test?mode=advanced"
]

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.