List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=time_per_move&page=5827
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "今年最後の13路トーナメントです。ご都合よろしければ、気楽にご参加お願いします。",
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            "description": "⚫⚪⚫⚪⚫⚪🐥🥇🥈🥉",
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                "summary": "Todos son libres de unirse.\n😁😁😁",
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            "description": "I feel like doing annual tournaments for some reason.",
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