[{"move": {"text": "Advanced Extraction Challenge:\n\nEmails:\n  Valid: alice.b+news@work-domain.com, bob.smith42@gmail.com, carol99@sub.domain.co.uk.\n  Invalid: john..doe@domain.com, .carl@domain, fake-email@@domain.com.\n\nPhones:\n  Valid: +1 (800) 123-4567, 202-555-0191, 1 234 567 8901.\n  Distractors: (800)1234567, 1234567, 555-0191.\n\nDates:\n  Valid: 2021-09-15, 15/09/2021, 09.15.2021.\n  Malformed: 2021/09/15, 15-09-2021.\n\nSerial Code:\n  Valid: ID: AB-123-BA.\n  Others (should not match): ID: EF-345-FG, ID: AA-222-BB.\n\nEnd of record.", "targetItems": ["alice.b+news@work-domain.com", "bob.smith42@gmail.com", "carol99@sub.domain.co.uk", "+1 (800) 123-4567", "202-555-0191", "1 234 567 8901", "2021-09-15", "15/09/2021", "09.15.2021", "ID: AB-123-BA"]}, "player": "o3-mini - (high)", "reasoning": "I'm presenting a highly challenging text sample that combines multiple advanced regex matching scenarios into one. The text requires a single regex to capture: complex email addresses (including those with plus signs and subdomains), phone numbers in various formats (with optional country codes, spaces, parentheses, and dashes), dates in three different formats (using dashes, slashes, or dots), and a specially structured serial number that uses a mirrored pattern (demanding the use of backreferences or conditional logic). Additionally, numerous distractors and invalid examples are embedded to challenge naive regex approaches, making this a significantly tough puzzle for regex experts.", "timestamp": 1742325222848}, {"move": "alice\\.b\\+news@work-domain\\.com|bob\\.smith42@gmail\\.com|carol99@sub\\.domain\\.co\\.uk|\\+1 \\(800\\) 123-4567|202-555-0191|1 234 567 8901|2021-09-15|15\\/09\\/2021|09\\.15\\.2021|ID: AB-123-BA", "player": "claude 3.7 sonnet (high2)", "reasoning": "I've created a regex that uses alternation (|) to match exactly the 10 specified items. For each item, I've properly escaped special regex metacharacters:\n- In emails: escaping dots (\\.), plus signs (\\+)\n- In phone numbers: escaping plus signs (\\+) and parentheses (\\( \\))\n- In dates: escaping forward slashes (\\/) and dots (\\.)\n- In the serial code: no special escaping needed\n\nThis approach ensures that only the exact 10 target items will match, and nothing else in the text. The pattern is constructed by joining each exact item with the OR operator, with proper escaping of regex metacharacters.", "timestamp": 1742325297028}, {"move": {"text": "System Security Audit Log [CLASSIFIED]:\n\nAccess Timestamps:\n- Login: admin@example.com accessed system at 2023-07-15T08:30:45.123Z [IP: 192.168.1.100]\n- API call: developer+test@company-name.co.uk accessed API at 2023-07-15T15:45:22.456-0700 [IP: 10.0.0.123]\n- Logout: guest.visitor@sub.domain.info ended session at 2023-07-14T23:59:59.789+0100 [IP: 172.16.254.1]\n- Failed login: invalid@email@domain.com attempted access at 2023-07-15 (malformed timestamp)\n\nTransaction Logs:\n- Purchase: TX-20230715-ABCD-1234-5678 (Status: approved) [Amount: $1,299.99] <Priority: HIGH>\n- Refund: TX-20230716-EFGH-5678-9012 (Status: pending) [Amount: $432.10] <Priority: MEDIUM>\n- Chargeback: TX-20230717-IJKL-9012-3456 (Status: rejected) [Amount: $0.00] <Priority: LOW>\n- Failed: TX-20230715-ABCD-1234-56789 (invalid format), TX-20230732-EFGH-5678-9012 (invalid date)\n\nData Patterns:\n- PII detected: ###-##-5678 (SSN), (123) 456-7890 (Phone), 123 Main St, Apt #456, City, State 12345 (Address)\n- Credit Card: XXXX-XXXX-XXXX-1234 (Type: VISA), XXXX-XXXX-XXXX-5678 (Type: MC), XXXXX-XXXXX-12345 (Type: AMEX)\n- No detection: XXXX-XXXX-XXXX-XXXX (generic placeholder), XXXXX-XXXXX-XXXXX (invalid format)\n\nSecurity Alerts:\n- Warning [W-123]: Threshold exceeded at 95% (cpu_usage) on server-01.example.com [Timestamp: 2023-07-15T10:30:45Z]\n- Critical [C-456]: Service unavailable at 100% (memory_usage) on server-02.example.com [Timestamp: 2023-07-15T11:45:22Z]\n- Info [I-789]: Routine backup completed at 45% (disk_usage) on server-03.example.com [Timestamp: 2023-07-15T12:59:59Z]\n- Malformed: Alert XYZ] Missing bracket format on server-04.example.com [Timestamp: 2023-07-15T13:01:02Z]", "targetItems": ["admin@example.com accessed system at 2023-07-15T08:30:45.123Z [IP: 192.168.1.100]", "developer+test@company-name.co.uk accessed API at 2023-07-15T15:45:22.456-0700 [IP: 10.0.0.123]", "guest.visitor@sub.domain.info ended session at 2023-07-14T23:59:59.789+0100 [IP: 172.16.254.1]", "TX-20230715-ABCD-1234-5678 (Status: approved) [Amount: $1,299.99] <Priority: HIGH>", "TX-20230716-EFGH-5678-9012 (Status: pending) [Amount: $432.10] <Priority: MEDIUM>", "TX-20230717-IJKL-9012-3456 (Status: rejected) [Amount: $0.00] <Priority: LOW>", "###-##-5678 (SSN)", "(123) 456-7890 (Phone)", "123 Main St, Apt #456, City, State 12345 (Address)", "XXXX-XXXX-XXXX-1234 (Type: VISA)", "XXXX-XXXX-XXXX-5678 (Type: MC)", "XXXXX-XXXXX-12345 (Type: AMEX)", "Warning [W-123]: Threshold exceeded at 95% (cpu_usage) on server-01.example.com [Timestamp: 2023-07-", "Critical [C-456]: Service unavailable at 100% (memory_usage) on server-02.example.com [Timestamp: 20", "Info [I-789]: Routine backup completed at 45% (disk_usage) on server-03.example.com [Timestamp: 2023"]}, "player": "claude 3.7 sonnet (high2)", "reasoning": "I'm creating an extremely difficult challenge that requires capturing complex patterns with varying formats, nested information, and special characters that need escaping. The challenge includes multiple pattern types that appear similar to invalid patterns, requiring precise regex techniques including lookaheads/lookbehinds, careful boundary handling, and complex alternations. Each target pattern contains tricky formatting elements that make naive approaches likely to fail.", "timestamp": 1742325414069}, {"move": "admin@example\\.com accessed system at 2023-07-15T08:30:45\\.123Z \\[IP: 192\\.168\\.1\\.100\\]|developer\\+test@company-name\\.co\\.uk accessed API at 2023-07-15T15:45:22\\.456-0700 \\[IP: 10\\.0\\.0\\.123\\]|guest\\.visitor@sub\\.domain\\.info ended session at 2023-07-14T23:59:59\\.789\\+0100 \\[IP: 172\\.16\\.254\\.1\\]|TX-20230715-ABCD-1234-5678 \\(Status: approved\\) \\[Amount: \\$1,299\\.99\\] <Priority: HIGH>|TX-20230716-EFGH-5678-9012 \\(Status: pending\\) \\[Amount: \\$432\\.10\\] <Priority: MEDIUM>|TX-20230717-IJKL-9012-3456 \\(Status: rejected\\) \\[Amount: \\$0\\.00\\] <Priority: LOW>|###-##-5678 \\(SSN\\)|\\(123\\) 456-7890 \\(Phone\\)|123 Main St, Apt #456, City, State 12345 \\(Address\\)|XXXX-XXXX-XXXX-1234 \\(Type: VISA\\)|XXXX-XXXX-XXXX-5678 \\(Type: MC\\)|XXXXX-XXXXX-12345 \\(Type: AMEX\\)|Warning \\[W-123\\]: Threshold exceeded at 95% \\(cpu_usage\\) on server-01\\.example\\.com \\[Timestamp: 2023-07-|Critical \\[C-456\\]: Service unavailable at 100% \\(memory_usage\\) on server-02\\.example\\.com \\[Timestamp: 20|Info \\[I-789\\]: Routine backup completed at 45% \\(disk_usage\\) on server-03\\.example\\.com \\[Timestamp: 2023", "player": "o3-mini - (high)", "reasoning": "I built a regex that is an alternation of 15 literal strings. Each target item is escaped exactly so that special regex characters (such as ., +, (, ), [, ], $) are matched literally. For example, dots are replaced with \\. and plus signs with \\+. This ensures that the regex matches exactly each of the 15 target strings (and nothing else) as they appear in the text.", "timestamp": 1742325471563}, {"move": {"text": "<<< TRANSMISSION START >>>\nValid Records:\n1. User Authentication: Email: user.name+tag-email@sub.domain-example.com | Login Date: 2023-07-15 | Backup Date: 15/07/2023.\n2. Contact Verification: Phone Number: +44 20 7946 0958 confirmed.\n3. Transaction Record: Order Code: ORD-2023/07/15-A1B2C3 processed.\n4. Equipment Check: Device Serial: SN: 1A2B-3C4D-5E6F-7G8H validated.\n\nNon-Matching Examples:\n- Email with underscore in domain: user.name+tag-email@sub_domain-example.com.\n- Different Date Formats: 2023/07/15, 15-07-2023, 07.15.2023.\n- Phone number variants: +44-20-7946-0958, (020) 7946 0958.\n- Order Code variant: ORD-2023-07-15-A1B2C3.\n- Serial Code anomaly: SN: 1A2B3C4D5E6F7G8H.\n<<< TRANSMISSION END >>>", "targetItems": ["user.name+tag-email@sub.domain-example.com", "2023-07-15", "15/07/2023", "+44 20 7946 0958", "ORD-2023/07/15-A1B2C3", "SN: 1A2B-3C4D-5E6F-7G8H"]}, "player": "o3-mini - (high)", "reasoning": "I'm creating an extremely difficult challenge requiring advanced regex techniques. The text sample includes multiple complex patterns: an email address with a plus sign and subdomain, dates in two distinct formats (ISO date and European date), a phone number with an international country code and spaces, an order code with mixed separators, and a serial code with a colon and hyphenated groups. Distraction entries, which closely resemble the target items but vary slightly (e.g., underscores instead of dots, different date or phone formats), require the regex to be extremely precise. This challenge will force regex experts to use advanced techniques such as lookarounds, careful escaping, precise alternation, and boundary assertions to match only the target items.", "timestamp": 1742325515930}, {"move": "user\\.name\\+tag-email@sub\\.domain-example\\.com|2023-07-15|15\\/07\\/2023|\\+44 20 7946 0958|ORD-2023\\/07\\/15-A1B2C3|SN: 1A2B-3C4D-5E6F-7G8H", "player": "claude 3.7 sonnet (high2)", "reasoning": "I've created a regex pattern that uses alternation (|) to match exactly the 6 target items:\n\n1. Email: \"user\\.name\\+tag-email@sub\\.domain-example\\.com\" - Escaping special characters like dots and plus sign\n2. ISO date: \"2023-07-15\" - Simple date format that doesn't need escaping\n3. UK date: \"15\\/07\\/2023\" - Escaping the forward slashes\n4. Phone number: \"\\+44 20 7946 0958\" - Escaping the plus sign and preserving spaces\n5. Order code: \"ORD-2023\\/07\\/15-A1B2C3\" - Escaping the forward slashes\n6. Serial number: \"SN: 1A2B-3C4D-5E6F-7G8H\" - Exact match including the \"SN: \" prefix\n\nThe pattern uses alternation to match exactly these strings and no others. I've carefully escaped special regex characters like dots, plus signs, and forward slashes to ensure they match literally.", "timestamp": 1742325545045}]