List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=min_ranking&page=5674
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Live-турнир.\nПримерно 30 сек на 1 ход.\nВ этот раз начало в 10:00 по Москве.",
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            "description": "Желаю всем участникам удачи! Заполучите этот кубок!\n(Кубок автоматически вы получите на сервере OGS если выиграете в турнире!)",
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