List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=4660
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=4659",
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                "summary": "A group for Go players who love the 9x9 board.",
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            "description": "Mottóként a Bergendy szalonzenekar remek lírája:\n\n\"Én táncolnék veled\n\nDe izgulok, ó, miért?\n\nÉn táncolnék veled, de nem tudok,\n\nFélsz, tán azért?\"\n\nÉn amondó vagyok, hogy nem kell itt félni; oda kell csapni a kövek közé!",
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                "summary": "Closed group for employees of SAP Hungary Kft",
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            "description": "Please, avoid delaying your games using the vacation feature.\n\nAnalysis is enabled to allow the use of conditional moves.",
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