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[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [GoAnalysis](./bitburner.goanalysis.md) &gt; [getLiberties](./bitburner.goanalysis.getliberties.md)
## GoAnalysis.getLiberties() method
Returns a number for each point, representing how many open nodes its network/chain is connected to. Empty nodes and dead nodes are shown as -1 liberties.
Takes an optional boardState argument; by default uses the current board state.
For example, a 5x5 board might look like this. The chain in the top-left touches 5 total empty nodes, and the one in the center touches four. The group in the bottom-right only has one liberty; it is in danger of being captured!
```
[
[-1, 5,-1,-1, 2],
[ 5, 5,-1,-1,-1],
[-1,-1, 4,-1,-1],
[ 3,-1,-1, 3, 1],
[ 3,-1,-1, 3, 1],
]
```
**Signature:**
```typescript
getLiberties(boardState?: string[]): number[][];
```
## Parameters
<table><thead><tr><th>
Parameter
</th><th>
Type
</th><th>
Description
</th></tr></thead>
<tbody><tr><td>
boardState
</td><td>
string\[\]
</td><td>
_(Optional)_ Optional. The current board state, as an array of strings. Defaults to the current board state.
</td></tr>
</tbody></table>
**Returns:**
number\[\]\[\]
A 2D array of numbers counting the liberties of each point.
## Remarks
RAM cost: 16 GB
(This is intentionally expensive; you can derive this info from just getBoardState() )