For using Leela Chess Zero (Lc0) as an analysis tool, the most recommended option is **Nibbler**. Nibbler is a dedicated, real-time analysis GUI specifically designed for Leela Chess Zero. It allows you to run Lc0 in the background, display evaluations for the current position, and—crucially for your request—it allows you to "compel" or force the engine to evaluate specific moves, which can help you focus on aggressive lines. You can find it on GitHub here: [https://github.com/rooklift/nibbler](https://github.com/rooklift/nibbler) Additionally, if you prefer a web-based approach, you can use Lc0 for analysis on **Lichess** by using browser extensions or specific tools designed to bridge Lc0 with the Lichess analysis board, as mentioned in various community forums. However, for the most control over the engine's behavior (like forcing aggressive moves), a local GUI like Nibbler is generally superior.