{ "data_id": "40668", "name": "connect-4", "exact_name": "connect-4", "version": 2, "version_label": null, "description": "**Author**: John Tromp \n**Source**: [UCI](https:\/\/archive.ics.uci.edu\/ml\/datasets\/Connect-4) - 1995 \n**Please cite**: [UCI](https:\/\/archive.ics.uci.edu\/ml\/citation_policy.html) \n\n**Connect-4** \nThis database contains all legal 8-ply positions in the game of connect-4 in which neither player has won yet, and in which the next move is not forced. Attributes represent board positions on a 6x6 board. The outcome class is the game-theoretical value for the first player (2: win, 1: loss, 0: draw).\n\n### Attribute Information \n\nThe board is numbered like: \n6 . . . . . . . \n5 . . . . . . . \n4 . . . . . . . \n3 . . . . . . . \n2 . . . . . . . \n1 . . . . . . . \na b c d e f g \n\nThe values represent: \n0: Blank \n1: Taken by Player 1 \n2: Taken by Player 2", "format": "ARFF", "uploader": "Pieter Gijsbers", "uploader_id": 869, "visibility": "public", "creator": "John Tromp", "contributor": null, "date": "2017-04-06 12:13:15", "update_comment": null, "last_update": "2017-04-06 12:13:15", "licence": "public", "status": "active", "error_message": null, "url": "https:\/\/www.openml.org\/data\/download\/4965243\/connect-4.arff", "default_target_attribute": "class", "row_id_attribute": null, "ignore_attribute": null, "runs": 9766, "suggest": { "input": [ "connect-4", "This database contains all legal 8-ply positions in the game of connect-4 in which neither player has won yet, and in which the next move is not forced. Attributes represent board positions on a 6x6 board. The outcome class is the game-theoretical value for the first player (2: win, 1: loss, 0: draw). ### Attribute Information The board is numbered like: 6 . . . . . . . 5 . . . . . . . 4 . . . . . . . 3 . . . . . . . 2 . . . . . . . 1 . . . . . . . a b c d e f g The values represent: 0: Blank 1: " ], "weight": 5 }, "qualities": { "NumberOfInstances": 67557, "NumberOfFeatures": 43, "NumberOfClasses": 3, "NumberOfMissingValues": 0, "NumberOfInstancesWithMissingValues": 0, "NumberOfNumericFeatures": 0, "NumberOfSymbolicFeatures": 43, "PercentageOfBinaryFeatures": 0, "PercentageOfInstancesWithMissingValues": 0, "AutoCorrelation": 0.619634081354728, "PercentageOfMissingValues": 0, "PercentageOfNumericFeatures": 0, "Dimensionality": 0.00063649954852939, "PercentageOfSymbolicFeatures": 100, "MajorityClassPercentage": 65.8303358645292, "MajorityClassSize": 44473, "MinorityClassPercentage": 9.546012996432642, "MinorityClassSize": 6449, "NumberOfBinaryFeatures": 0 }, "tags": [ { "tag": 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