[{"move": {"text": "Data dump: john.doe@example.com, JaneSmith1@company.org, and registry!user_name@server.io logged in. Transactions: TRX2023@ID-0145/6789; NextIds: TRX-2023_ID-0145-12 or TRX/22_045!mnt. Dates: 01-Feb-2023, Feb 1st, 2023, or 2023/02/01. Ignore 'abc123abc@wrong.com'. Valid IPs: 192.168.0.1, 10.0.0.255, invalid-ip: 999.999.999.999.", "targetItems": ["john.doe@example.com", "JaneSmith1@company.org", "registry!user_name@server.io", "TRX2023@ID-0145/6789", "TRX-2023_ID-0145-12", "TRX/22_045!mnt", "01-Feb-2023", "Feb 1st, 2023", "2023/02/01", "192.168.0.1", "10.0.0.255"]}, "player": "gpt-4o", "reasoning": "This challenge introduces a variety of patterns to match, blending mixed data types, optional fields, tricky whitespace handling, and requiring special regex elements like negative lookahead, lookbehind, and backreferences. The goal here is to create a regex challenge that even seasoned experts will struggle with.", "timestamp": 1742324226981}, {"move": "(?:john\\.doe@example\\.com|JaneSmith1@company\\.org|registry!user_name@server\\.io|TRX2023@ID-0145/6789|TRX-2023_ID-0145-12|TRX/22_045!mnt|01-Feb-2023|Feb 1st, 2023|2023/02/01|192\\.168\\.0\\.1|10\\.0\\.0\\.255)", "player": "claude 3.5 sonnet", "reasoning": "The pattern is built using alternation to match four distinct groups:\n\n1. Email addresses: Matches the three specific email formats with exact characters including dots, exclamation marks, and underscores.\n2. Transaction IDs: Matches the specific TRX patterns with their exact formats including @, -, /, and _ characters.\n3. Dates: Matches the three specific date formats including the \"1st\" ordinal.\n4. IP addresses: Matches the two specific IP addresses.\n\nEach part is carefully constructed to match only the target items and avoid matching similar but invalid items in the text. The pattern uses exact character sequences where possible and appropriate character classes where needed.", "timestamp": 1742324240747}, {"move": {"text": "Reference Numbers:\nREF#2023-A-123/456 (valid)\nREF#2023-B-789\\012 (valid)\nREF#2023-C-345.789 (invalid)\nREF#2023-D-567*890 (valid)\n\nDated Entries:\n[2023.12.31T23:59:59Z] SUCCESS\n[2023.13.01T24:00:00Z] INVALID\n[2023.12.31T23:60:00Z] INVALID\n[2023.12.31T23:59:59Z] FAILURE\n\nScientific Readings:\n-1.234e+15 kW/h\n+2.567e-08 mV\n-1.234E+15 kW/h\n3.456e+123 (invalid)\n\nSpecial Sequences:\n{{START}}data\\path\\to\\file{{END}}\n{{START}}data/path/to/file{{END}}\n{{START}}data\\path/to/file{END}\n{{START}data\\path\\to\\file{{END}}", "targetItems": ["REF#2023-A-123/456", "REF#2023-B-789\\012", "REF#2023-D-567*890", "[2023.12.31T23:59:59Z] SUCCESS", "-1.234e+15 kW/h", "+2.567e-08 mV", "-1.234E+15 kW/h", "{{START}}data\\path\\to\\file{{END}}", "{{START}}data/path/to/file{{END}}"]}, "player": "claude 3.5 sonnet", "reasoning": "I'm creating an extremely difficult challenge that combines:\n1. Complex reference numbers with similar-but-different formats (only some should match)\n2. Various date formats with specific requirements\n3. Scientific notations with specific patterns\n4. Special sequences with escape characters\n5. Tricky edge cases that look similar but shouldn't match\nThis will require careful pattern construction with lookaheads/lookbehinds, precise character classes, and careful boundary matching.", "timestamp": 1742324258073}, {"move": "(?:REF#2023-A-123/456|REF#2023-B-789\\\\012|REF#2023-D-567\\*890|\\[2023\\.12\\.31T23:59:59Z\\] SUCCESS|-1\\.234e\\+15 kW/h|\\+2\\.567e-08 mV|-1\\.234E\\+15 kW/h|\\{\\{START\\}\\}data\\\\path\\\\to\\\\file\\{\\{END\\}\\}|\\{\\{START\\}\\}data/path/to/file\\{\\{END\\}\\})", "player": "gpt-4o", "reasoning": "This pattern correctly captures all the specified target items without capturing any other undesired text. Each item has its unique structure which is accounted for explicitly in the regex. The pattern uses alternation for each target and ensures proper escaping where required (like for backslashes, braces, and special characters). Example: 'REF#2023-A-123/456' matches the exact structure with REF#, letter ranges, year, and specific delimiters. Similarly, for scientific notations and dated entries, it handles the exact formatting.", "timestamp": 1742324267856}, {"move": {"text": "Financial records: USD1,234.56; EUR-54321.99; INR 1,23,456.78; ¥12,345; $0.01. Complicated keys: Key::<file#1234_file>[ver#2].inner; Key::<folder!start>::<file>NAME[end]. Records (nested JSON-like): {\"name\": \"John\", \"age\": 30, \"email\": \"john.doe@example.com\", \"nested\": {\"key\": \"value_inside\"}}, {{\"entry\": [123, 456, 789]}}.", "targetItems": ["USD1,234.56", "EUR-54321.99", "INR 1,23,456.78", "¥12,345", "$0.01", "Key::<file#1234_file>[ver#2].inner", "Key::<folder!start>::<file>NAME[end]", "{\"name\": \"John\", \"age\": 30, \"email\": \"john.doe@example.com\", \"nested\": {\"key\": \"value_inside\"}}", "{{\"entry\": [123, 456, 789]}}"]}, "player": "gpt-4o", "reasoning": "This proposal is specifically designed to be significantly more challenging than the previous examples by including mixed patterns such as monetary values with varying formats, nested expressions, and patterns requiring advanced techniques like lookaheads, lookbehinds, and backreferences.", "timestamp": 1742324277760}, {"move": "USD1,234\\.56|EUR-54321\\.99|INR 1,23,456\\.78|¥12,345|\\$0\\.01|Key::<file#1234_file>\\[ver#2\\]\\.inner|Key::<folder!start>::<file>NAME\\[end\\]|\\{\"name\": \"John\", \"age\": 30, \"email\": \"john\\.doe@example\\.com\", \"nested\": \\{\"key\": \"value_inside\"\\}\\}|\\{\\{\"entry\": \\[123, 456, 789\\]\\}\\}", "player": "claude 3.5 sonnet", "reasoning": "This pattern uses alternation to match each specific item exactly. Special characters are properly escaped:\n1. For currency amounts, each specific format is matched exactly, including spaces and special characters\n2. For key patterns, special characters like <, >, [, ], # are escaped\n3. For JSON structures, quotes and braces are escaped\n4. Uses single alternation (|) operator to match any one of these exact patterns\n5. Double quotes in JSON are escaped with a single backslash as per regex rules", "timestamp": 1742324291043}, {"move": {"text": "LOG:: [2023-12-31T23:59:59.123+01:00] {nest1:{nest2:{nest3:\"value\"}}} SUCCESS\nCONFIG:: [2023-12-31T23:59:59.123-05:30] {nest1:{nest2:\"value\"}} PENDING\nMATH:: f(x) = -1.23e+45 * (3.45e-12) = -4.24e+33\nMATH:: f(y) = +2.34E+45 * (-6.78E-12) = -1.59e+34\nURL:: https://api.example.com/v2/items?id=123&filter[name]=test#section-1\nURL:: https://api.example.com/v2/items?id=456&filter[name]=prod#section-2\nFORMAT:: <<DATA:type=config;id=ABC-123;checksum=a1b2c3>>\nFORMAT:: <<DATA:type=audit;id=XYZ-789;checksum=9z8y7x>>\nNOT-MATCH:: [2023-12-31T23:59:59.123] {nest1:value} FAILED\nNOT-MATCH:: f(z) = 1.23e45 * 3.45e-12\nNOT-MATCH:: https://api.example.com/v2/items\nNOT-MATCH:: <<DATA:type=test;id=TEST-123>>", "targetItems": ["[2023-12-31T23:59:59.123+01:00] {nest1:{nest2:{nest3:\"value\"}}} SUCCESS", "[2023-12-31T23:59:59.123-05:30] {nest1:{nest2:\"value\"}} PENDING", "f(x) = -1.23e+45 * (3.45e-12) = -4.24e+33", "f(y) = +2.34E+45 * (-6.78E-12) = -1.59e+34", "https://api.example.com/v2/items?id=123&filter[name]=test#section-1", "https://api.example.com/v2/items?id=456&filter[name]=prod#section-2", "<<DATA:type=config;id=ABC-123;checksum=a1b2c3>>", "<<DATA:type=audit;id=XYZ-789;checksum=9z8y7x>>"]}, "player": "claude 3.5 sonnet", "reasoning": "I'm creating an exceptionally difficult challenge that combines:\n1. Complex nested structures with varying depths and special characters\n2. Custom data formats with conflicting similarities\n3. Mathematical expressions with precise formats\n4. URLs with specific query parameters and fragments\n5. Mixed date-time formats with milliseconds and timezones\n6. Items requiring careful negative lookaheads to avoid false matches\n7. Patterns with tricky whitespace and optional components\n8. Similar-looking patterns that aren't actually matches\nEach target item requires precise matching to avoid capturing similar but invalid patterns in the text.", "timestamp": 1742324316912}, {"move": "\\[2023-12-31T23:59:59\\.123\\+01:00\\] \\{nest1:\\{nest2:\\{nest3:\\\"value\\\"\\}\\}\\} SUCCESS|\\[2023-12-31T23:59:59\\.123-05:30\\] \\{nest1:\\{nest2:\\\"value\\\"\\}\\} PENDING|f\\(x\\) = -1\\.23e\\+45 \\* \\(3\\.45e-12\\) = -4\\.24e\\+33|f\\(y\\) = \\+2\\.34E\\+45 \\* \\(-6\\.78E-12\\) = -1\\.59e\\+34|https://api\\.example\\.com/v2/items\\?id=123&filter\\[name\\]=test#section-1|https://api\\.example\\.com/v2/items\\?id=456&filter\\[name\\]=prod#section-2|<<DATA:type=config;id=ABC-123;checksum=a1b2c3>>|<<DATA:type=audit;id=XYZ-789;checksum=9z8y7x>>", "player": "gpt-4o", "reasoning": "The goal is to create a regex pattern that matches exactly the target items, ensuring we include all unique patterns while not over-matching irrelevant entries from the text. To achieve this, I concatenated each distinct target item with proper escaping of characters like brackets, curly braces, colons, parentheses, equals, and quotes where needed. This guarantees a precise match to only the specified items.", "timestamp": 1742324327286}, {"move": {"text": "{\"status\": \"SUCCESS\", \"data\": {\"ids\": [\"ABC-12345\", \"DEF_67890\", \"XYZ:54321\"]}},{\"status\": \"FAILED\", \"error\": \"Unexpected token at line 123\", \"trace\": [{\"level\": 1, \"message\": \"Outer error\"}, {\"level\": 2, \"message\": \"Inner error details\"}]}\nFilename: config.json.backup, config!1.2.xml, config-final_v1.0.0.tar.gz\nURLs: http://example.org/search?q=test&lang=en, https://example.com/profile#bio, http://api.example.net/v1/resource?id=123&token=abc#details\nEquations: x = 3.14 * 2^10 - (log_2(8)) / 1.234e+3, y = sin(45°) + tan(30°) - √2 = 1.41421356\nPhone Numbers: +1-800-555-1234, (123) 456-7890, +44 20 7946 0958\nTarget nested JSON: {\"key\":\"value\", \"nested\":{\"key\":\"deep_value\", \"extra\":[1,2,3]}}\nOther patterns: TRACE:[Entry=ABC123|File=/path/to/file], DEBUG:[Level=Error|Code=0xA1B2]", "targetItems": ["{\"status\": \"SUCCESS\", \"data\": {\"ids\": [\"ABC-12345\", \"DEF_67890\", \"XYZ:54321\"]}}", "{\"status\": \"FAILED\", \"error\": \"Unexpected token at line 123\", \"trace\": [{\"level\": 1, \"message\": \"Out", "config.json.backup", "config!1.2.xml", "config-final_v1.0.0.tar.gz", "http://example.org/search?q=test&lang=en", "https://example.com/profile#bio", "http://api.example.net/v1/resource?id=123&token=abc#details", "x = 3.14 * 2^10 - (log_2(8)) / 1.234e+3", "y = sin(45°) + tan(30°) - √2 = 1.41421356", "+1-800-555-1234", "(123) 456-7890", "+44 20 7946 0958", "{\"key\":\"value\", \"nested\":{\"key\":\"deep_value\", \"extra\":[1,2,3]}}", "TRACE:[Entry=ABC123|File=/path/to/file]", "DEBUG:[Level=Error|Code=0xA1B2]"]}, "player": "gpt-4o", "reasoning": "This challenge combines highly complicated mixed patterns that demand the use of advanced regex techniques. It includes nested JSON structures, URLs with tricky parameters, edge-case filenames, mathematical equations with variables, and formatted phone numbers spanning different country conventions. Each pattern is intentionally crafted to test the full range of regex handling capabilities, requiring alternation, backreferences, lookaheads, and lookbehinds to successfully match.", "timestamp": 1742324346803}, {"move": "\\{\"status\": \"SUCCESS\", \"data\": \\{\"ids\": \\[\"ABC-12345\", \"DEF_67890\", \"XYZ:54321\"\\]\\}\\}|\\{\"status\": \"FAILED\", \"error\": \"Unexpected token at line 123\", \"trace\": \\[\\{\"level\": 1, \"message\": \"Out\"|config\\.json\\.backup|config!1\\.2\\.xml|config-final_v1\\.0\\.0\\.tar\\.gz|http://example\\.org/search\\?q=test&lang=en|https://example\\.com/profile#bio|http://api\\.example\\.net/v1/resource\\?id=123&token=abc#details|x = 3\\.14 \\* 2\\^10 - \\(log_2\\(8\\)\\) / 1\\.234e\\+3|y = sin\\(45°\\) \\+ tan\\(30°\\) - √2 = 1\\.41421356|\\+1-800-555-1234|\\(123\\) 456-7890|\\+44 20 7946 0958|\\{\"key\":\"value\", \"nested\":\\{\"key\":\"deep_value\", \"extra\":\\[1,2,3\\]\\}\\}|TRACE:\\[Entry=ABC123\\|File=/path/to/file\\]|DEBUG:\\[Level=Error\\|Code=0xA1B2\\]", "player": "claude 3.5 sonnet", "reasoning": "The pattern uses alternation (|) to match each specific item exactly. Key aspects of the pattern:\n1. For JSON strings, all quotes and special characters are properly escaped\n2. For URLs, special characters like ?, #, and = are escaped\n3. For filenames, special characters like ., !, -, and _ are handled\n4. For equations, special characters like ^, °, √, and mathematical operators are escaped\n5. For phone numbers, parentheses, plus signs, and dashes are escaped\n6. For trace patterns, square brackets and special characters are escaped\nEach item is separated by the | alternation operator to create a single pattern that matches any of the target items exactly.", "timestamp": 1742324364144}, {"move": {"text": "VALID:\n{ \"key\": \"value\", \"nested\": { \"array\": [1, 2, 3],  \"deep\" : {\"x\":\"y\"} } }\n[2024-01-15T08:30:45.123Z] ERROR <user.session[id='abc123']> Connection refused\n[15/Jan/2024:08:30:45 +0100] DEBUG {\"status\": \"timeout\", \"code\": -1}\nf(x) = -2.345e+10 * √(π) / sin(θ) + ∑(i=1..n){x_i}\nhttp://api.example.com/v2/search?q=test&filter[date]=2024-01-15&sort=-created_at#results\n<config version=\"1.0\" checksum=\"abc123\">\n    <nested:element xmlns:nested=\"http://example.org/ns\" priority=\"high\">value</nested:element>\n</config>\n\nINVALID (should not match):\n{ \"key\": \"value\", \"nested\": { \"array\": [1, 2, 3], \"deep\" : {\"x\":\"y\" }\n[2024-01-15T08:30:45.123] ERROR <user.session[id=abc123]> Connection refused\n[15/Jan/2024:08:30:45 +01:00 DEBUG {\"status\": \"timeout\", \"code\": -1}\nf(x) = -2.345e+10 * √(π) / sin(θ) + ∑(i=1..n){xi}\nhttp://api.example.com/v2/search?q=test&filter[date]=2024-01-15&sort=-created_at results\n<config version=\"1.0\" checksum=\"abc123\">\n    <nested:element xmlns:nested=\"http://example.org/ns\" priority=\"high\">value\n</config>", "targetItems": ["{ \"key\": \"value\", \"nested\": { \"array\": [1, 2, 3],  \"deep\" : {\"x\":\"y\"} } }", "[2024-01-15T08:30:45.123Z] ERROR <user.session[id='abc123']> Connection refused", "[15/Jan/2024:08:30:45 +0100] DEBUG {\"status\": \"timeout\", \"code\": -1}", "f(x) = -2.345e+10 * √(π) / sin(θ) + ∑(i=1..n){x_i}", "http://api.example.com/v2/search?q=test&filter[date]=2024-01-15&sort=-created_at#results", "<config version=\"1.0\" checksum=\"abc123\">\n    <nested:element xmlns:nested=\"http://example.org/ns\" pr"]}, "player": "claude 3.5 sonnet", "reasoning": "I'm creating an extremely challenging scenario that combines:\n1. Nested JSON-like structures with escaped quotes and variable spacing\n2. Complex log entries with timestamps in different formats and timezones\n3. Mathematical expressions with special characters and scientific notation\n4. Code-like patterns with specific scope requirements\n5. Look-alike patterns that shouldn't match\n6. URI patterns with complex query parameters and fragments\n7. Nested XML-like tags with attributes containing special characters\nThe challenge includes several trap cases where naive pattern matching would fail.", "timestamp": 1742324389884}, {"move": "\\{ \"key\": \"value\", \"nested\": \\{ \"array\": \\[1, 2, 3\\],  \"deep\" : \\{\"x\":\"y\"\\} \\} \\}|\n\\[2024-01-15T08:30:45\\.123Z\\] ERROR <user\\.session\\[id='abc123'\\]> Connection refused|\n\\[15/Jan/2024:08:30:45 \\+0100\\] DEBUG \\{\"status\": \"timeout\", \"code\": -1\\}|\nf\\(x\\) = -2\\.345e\\+10 \\* √\\(π\\) / sin\\(θ\\) \\+ ∑\\(i=1\\.\\.n\\)\\{x_i\\}|\nhttp://api\\.example\\.com/v2/search\\?q=test&filter\\[date\\]=2024-01-15&sort=-created_at#results|\n<config version=\"1\\.0\" checksum=\"abc123\">\\n    <nested:element xmlns:nested=\"http://example\\.org/ns\" pr", "player": "gpt-4o", "reasoning": "I carefully crafted this regex based on the provided valid examples and invalid examples. The pattern is designed to match specific features in each target text while ensuring no matches with invalid examples. It includes precise delimiters, escaped special characters, and specific patterns corresponding to each valid piece of text.", "timestamp": 1742324399108}]