"Stafford gambit" meaning in English

{
  "etymology_text": "Named after Joseph C. Stafford who famously won a correspondence game with this opening in 1950.",
  "forms": [
    {
      "form": "Stafford gambits",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Stafford gambit (plural Stafford gambits)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Chess openings",
          "orig": "en:Chess openings",
          "parents": [
            "Chess",
            "Board games",
            "Tabletop games",
            "Games",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A chess opening deriving from the Petrov Defence (1. e4 e5 2. Nf3 Nf6) after which black gives up its king's pawn and plays the queen's knight to the C file (3. Nxe5 Nc6), especially when followed by (4. Nxc6 dxc6)."
      ],
      "id": "en-Stafford_gambit-en-noun-6kiTvxQd",
      "links": [
        [
          "chess",
          "chess"
        ],
        [
          "opening",
          "opening"
        ],
        [
          "Petrov Defence",
          "Petrov Defence"
        ]
      ]
    }
  ],
  "word": "Stafford gambit"
}

{
  "etymology_text": "Named after Joseph C. Stafford who famously won a correspondence game with this opening in 1950.",
  "forms": [
    {
      "form": "Stafford gambits",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Stafford gambit (plural Stafford gambits)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Chess openings"
      ],
      "glosses": [
        "A chess opening deriving from the Petrov Defence (1. e4 e5 2. Nf3 Nf6) after which black gives up its king's pawn and plays the queen's knight to the C file (3. Nxe5 Nc6), especially when followed by (4. Nxc6 dxc6)."
      ],
      "links": [
        [
          "chess",
          "chess"
        ],
        [
          "opening",
          "opening"
        ],
        [
          "Petrov Defence",
          "Petrov Defence"
        ]
      ]
    }
  ],
  "word": "Stafford gambit"
}