# org.lichess.puzzle.getRandom

> Published by [pds.dad](https://lexicon.garden/identity/did:plc:rnpkyqnmsw4ipey6eotbdnnf)

## Links

- [View on Lexicon Garden](https://lexicon.garden/lexicon/did:plc:rnpkyqnmsw4ipey6eotbdnnf/org.lichess.puzzle.getRandom)
- [Documentation](https://lexicon.garden/lexicon/did:plc:rnpkyqnmsw4ipey6eotbdnnf/org.lichess.puzzle.getRandom/docs)
- [Examples](https://lexicon.garden/lexicon/did:plc:rnpkyqnmsw4ipey6eotbdnnf/org.lichess.puzzle.getRandom/examples)

## Definitions

### `org.lichess.puzzle.getRandom`

**Type**: `query`

Get a random chess puzzle. Optionally filter by a target rating (a random puzzle within 100 of it is returned) and/or themes (matching at least one). With no parameters, returns a truly random puzzle from the dataset with no filtering.

#### Parameters

| Property | Type | Required | Description |
|----------|------|----------|-------------|
| `rating` | `integer` | No | a target Glicko-2 rating; a random puzzle whose rating is within 100 of this value is returned. When omitted, rating is not filtered. |
| `themes` | `array` | No | restrict the result to puzzles matching at least one of these themes (e.g. "fork", "endgame"). When omitted, themes are not filtered. |

#### Output

**Encoding**: `application/json`

#### Errors

- **PuzzleNotFound**: No puzzle matches the given rating and/or theme filters.

## Raw Schema

```json
{
  "id": "org.lichess.puzzle.getRandom",
  "defs": {
    "main": {
      "type": "query",
      "errors": [
        {
          "name": "PuzzleNotFound",
          "description": "No puzzle matches the given rating and/or theme filters."
        }
      ],
      "output": {
        "schema": {
          "ref": "org.lichess.puzzle.defs#puzzleView",
          "type": "ref"
        },
        "encoding": "application/json"
      },
      "parameters": {
        "type": "params",
        "properties": {
          "rating": {
            "type": "integer",
            "minimum": 0,
            "description": "a target Glicko-2 rating; a random puzzle whose rating is within 100 of this value is returned. When omitted, rating is not filtered."
          },
          "themes": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "restrict the result to puzzles matching at least one of these themes (e.g. \"fork\", \"endgame\"). When omitted, themes are not filtered."
          }
        }
      },
      "description": "Get a random chess puzzle. Optionally filter by a target rating (a random puzzle within 100 of it is returned) and/or themes (matching at least one). With no parameters, returns a truly random puzzle from the dataset with no filtering."
    }
  },
  "$type": "com.atproto.lexicon.schema",
  "lexicon": 1
}
```