[{"move": {"text": "Dates: 2023/12/31 15:45:30 UTC, 31-12-2023 15:45, 2023.12.31, 31/12/23\nProduct IDs: #PRD-A123-4x5!, PRD-B456-7Y8, PRD.C789.9Z0, PRD-D321-XYZ\nIPv6: 2001:0db8:85a3:0000:0000:8a2e:0370:7334, 2001:db8::1, ::1, 2001:db8::8a2e:370:7334\nStrings: {code128}, [code128], (code128), code128, {code256}, (code129)", "targetItems": ["2023/12/31 15:45:30 UTC", "31-12-2023 15:45", "#PRD-A123-4x5!", "PRD-B456-7Y8", "2001:0db8:85a3:0000:0000:8a2e:0370:7334", "2001:db8::1", "{code128}", "(code128)"]}, "player": "claude 3.5 sonnet", "reasoning": "I'm creating an extremely difficult challenge that combines:\n1. Mixed date formats with different separators and optional components\n2. Product codes with specific patterns but potential false positives\n3. IPv6 addresses (partial and full) with varying formats\n4. Strings that look similar but only some should match\nThis will require careful use of lookarounds, precise boundary matching, and handling of optional components while avoiding similar but invalid patterns.", "timestamp": 1742326802959}, {"move": "(2023\\/12\\/31 15:45:30 UTC|31-12-2023 15:45|#PRD-A123-4x5!|PRD-B456-7Y8|2001:0db8:85a3:0000:0000:8a2e:0370:7334|2001:db8::1|\\{code128\\}|\\(code128\\))", "player": "o1 - (low)", "reasoning": "We use a single alternation that covers each target item exactly—including necessary escapes for slashes, braces, and parentheses—and rely on the fact that none of the unneeded items in the text match any of these exact strings.", "timestamp": 1742326837638}, {"move": {"text": "Here we go with a truly challenging set of patterns to match:\n\n1) Emails:\n   - John.Doe+regex@sub.domain-example.co.uk\n   - a_b-c@xyz123.domain--test.net\n   - Not an email: jdoe (at) domain.com\n\n2) Phone numbers:\n   - +1 (123) 456-7890\n   - 0031 2 45 67 890 x123\n   - Invalid phone: 123-4567-8\n\n3) IDs and dates:\n   - ID#123-xyz\n   - 2023-12-31\n   - 12/31/2023\n   - 20231231\n   - Almost an ID: ID#123-xy\n   - Invalid date: 2023-13-99\n\n4) IPv6:\n   - 2001:0db8:0000:85a3:0000:0000:0370:7334\n   - 2001:db8:0:85a3::370:7334\n   - Incorrect IPv6: 2001:::85a3\n\n5) Repeated pattern with backreference:\n   - Valid pattern: AA-BB-AA\n   - Not valid: AA-CC-BB\n", "targetItems": ["John.Doe+regex@sub.domain-example.co.uk", "a_b-c@xyz123.domain--test.net", "+1 (123) 456-7890", "0031 2 45 67 890 x123", "ID#123-xyz", "2023-12-31", "12/31/2023", "20231231", "2001:0db8:0000:85a3:0000:0000:0370:7334", "2001:db8:0:85a3::370:7334", "AA-BB-AA"]}, "player": "o1 - (low)", "reasoning": "I’m creating a single text containing multiple advanced patterns: IP addresses (including compressed IPv6), tricky phone numbers with optional extensions, varied date formats, IDs requiring exact matching, and emails with special characters. There are also near-misses (invalid forms for each category) that must be excluded. This requires negative lookbehind/lookahead, optional groups, grouping alternation, special character escaping, and backreferences for a single complex pattern.", "timestamp": 1742326857730}, {"move": "John\\.Doe\\+regex@sub\\.domain-example\\.co\\.uk|a_b-c@xyz123\\.domain--test\\.net|\\+1 \\(123\\) 456-7890|0031 2 45 67 890 x123|ID#123-xyz|2023-12-31|12/31/2023|20231231|2001:0db8:0000:85a3:0000:0000:0370:7334|2001:db8:0:85a3::370:7334|AA-BB-AA", "player": "claude 3.5 sonnet", "reasoning": "The pattern is constructed using alternation to match each specific item:\n1. Email addresses: Escaped special characters like dots and plus signs\n2. Phone numbers: Escaped parentheses and specific spacing patterns\n3. ID and dates: Used escaped # and different date separators\n4. IPv6: Used colons and zeros pattern, with double colon abbreviation option\n5. AA-BB-AA pattern: Used exact matching with hyphens\n\nEach pattern is made specific enough to match only the target items and not similar but invalid entries in the text. Used alternation (|) to combine all patterns.", "timestamp": 1742326868867}, {"move": {"text": "Valid items:\n[func(x)] => {calc(2+3)}\nhttp://valid-url.com:8080/path?q=1\nhttps://sub.example.com/path#fragment\nNOT_VALID(but this is [VALID(nested)])\n2023-12-31T23:59:59.999-08:00\n2024-01-01T00:00:00.000Z\nSEQ-01-[ABC]-{X123}\nSEQ-02-[DEF]-{Y456}\n\nSimilar but invalid items:\n[func(x] => {calc(2+3)}\nhttp:/invalid-url.com:8080/path?q=1\nhttps://sub.example.com/path#fragment#invalid\nNOT_VALID(but this is [VALID(nested])\n2023-12-31T23:59:59.999-0800\n2024-01-01T00:00:00.000ZZ\nSEQ-01-[ABC]-{X123\nSEQ-02-[DEF}-{Y456}", "targetItems": ["[func(x)] => {calc(2+3)}", "http://valid-url.com:8080/path?q=1", "https://sub.example.com/path#fragment", "NOT_VALID(but this is [VALID(nested)])", "2023-12-31T23:59:59.999-08:00", "2024-01-01T00:00:00.000Z", "SEQ-01-[ABC]-{X123}", "SEQ-02-[DEF]-{Y456}"]}, "player": "claude 3.5 sonnet", "reasoning": "I'm creating an extremely difficult challenge that combines:\n1. Complex nested patterns with parentheses/brackets that must be balanced\n2. URLs with optional components and specific requirements\n3. Advanced date/time formats with timezone variations\n4. Items that look similar but have subtle differences making only one valid\n5. Special sequences that require exact matching while avoiding false positives\n6. Patterns with mixed case sensitivity requirements", "timestamp": 1742326882303}, {"move": "\\[func\\(x\\)\\] => \\{calc\\(2\\+3\\)\\}|http:\\/\\/valid-url\\.com:8080\\/path\\?q=1|https:\\/\\/sub\\.example\\.com\\/path#fragment|NOT_VALID\\(but this is \\[VALID\\(nested\\)\\]\\)|2023-12-31T23:59:59\\.999-08:00|2024-01-01T00:00:00\\.000Z|SEQ-01-\\[ABC\\]-\\{X123\\}|SEQ-02-\\[DEF\\]-\\{Y456\\}", "player": "o1 - (low)", "reasoning": "We can build a single alternation of literal matches for each exact string. Every special character such as brackets, parentheses, or dots is escaped. This ensures we capture only those eight exact text snippets and nothing else.", "timestamp": 1742326901287}]