Reliable, useful, and easy to understand. A solid companion for online chess players.

这是我用过的最好的国际象棋学习扩展之一。分析功能与可视化辅助工具的结合非常出色，对提升棋艺帮助很大。

Отличный инструмент для обучения!

Nice tools

Easy to install and works smoothly on Firefox.

Amazing extension easy to use!!!

Chess Helper makes analyzing complicated positions much less intimidating. I can instantly see important threats and opportunities.

Excellent companion for anyone studying chess online. The visual analysis tools are particularly useful.