"!?" meaning in Conventions internationales

{
  "categories": [
    {
      "kind": "other",
      "name": "Symboles en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Conventions internationales",
      "orig": "conventions internationales",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Combinaison de !, qui indique un bon coup aux échecs, et de ?, qui indique un mauvais coup."
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole",
  "related": [
    {
      "word": "?!"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Indique un bon coup qui ne semble pas le meilleur."
      ],
      "id": "fr-!?-conv-symbol-XClO~kFH",
      "raw_tags": [
        "Aux échecs"
      ]
    }
  ],
  "word": "!?"
}

{
  "categories": [
    "Symboles en conventions internationales",
    "conventions internationales"
  ],
  "etymology_texts": [
    "Combinaison de !, qui indique un bon coup aux échecs, et de ?, qui indique un mauvais coup."
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole",
  "related": [
    {
      "word": "?!"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Indique un bon coup qui ne semble pas le meilleur."
      ],
      "raw_tags": [
        "Aux échecs"
      ]
    }
  ],
  "word": "!?"
}