"pawn cube" meaning in English

{
  "forms": [
    {
      "form": "pawn cubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pawn cube (plural pawn cubes)",
      "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",
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          "source": "w"
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Chess",
          "orig": "en:Chess",
          "parents": [
            "Board games",
            "Tabletop games",
            "Games",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A situation in which four of one player's pawns are positioned on adjacent files and adjacent ranks forming a 2×2 square."
      ],
      "id": "en-pawn_cube-en-noun-So~dLfHg",
      "links": [
        [
          "chess",
          "chess"
        ],
        [
          "four",
          "four"
        ],
        [
          "player",
          "player"
        ],
        [
          "pawn",
          "pawn"
        ],
        [
          "file",
          "file"
        ],
        [
          "rank",
          "rank"
        ]
      ],
      "raw_glosses": [
        "(chess, informal) A situation in which four of one player's pawns are positioned on adjacent files and adjacent ranks forming a 2×2 square."
      ],
      "tags": [
        "informal"
      ],
      "topics": [
        "board-games",
        "chess",
        "games"
      ]
    }
  ],
  "word": "pawn cube"
}

{
  "forms": [
    {
      "form": "pawn cubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pawn cube (plural pawn cubes)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
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        "en:Chess"
      ],
      "glosses": [
        "A situation in which four of one player's pawns are positioned on adjacent files and adjacent ranks forming a 2×2 square."
      ],
      "links": [
        [
          "chess",
          "chess"
        ],
        [
          "four",
          "four"
        ],
        [
          "player",
          "player"
        ],
        [
          "pawn",
          "pawn"
        ],
        [
          "file",
          "file"
        ],
        [
          "rank",
          "rank"
        ]
      ],
      "raw_glosses": [
        "(chess, informal) A situation in which four of one player's pawns are positioned on adjacent files and adjacent ranks forming a 2×2 square."
      ],
      "tags": [
        "informal"
      ],
      "topics": [
        "board-games",
        "chess",
        "games"
      ]
    }
  ],
  "word": "pawn cube"
}