How to search checkmark/checkbox properties?

Does one of these help?

## 2 Checkbox

```query
[checkbox1:]
```

```query
[checkbox2: false]
```

```query
[checkbox3: "True"]
```

```dataview
TABLE WITHOUT ID 
file.link
FROM ""
WHERE Checkbox2 = "false"
```

```dataview
TABLE WITHOUT ID 
file.link
FROM ""
WHERE contains(Checkbox3, "true")
```