ChessPower is a free Chrome extension designed to assist chess players by visualizing key elements on the chessboard while using chess.com. This tool highlights the power plays of pieces, marking attacked squares in red rings and supportive squares in green rings. Additionally, it visually indicates control of board cells with borders that show whether white or black has dominance over a field, making it easier for users to strategize their moves.

The extension offers customizable features through a popup configuration accessible by clicking the extension icon in the Chrome toolbar. Users can turn off the rotation of black pieces and toggle various functionalities according to their needs. ChessPower is compatible with Analysis, Play Bot, and Watch Live modes, although it is disabled during games against real players, emphasizing its purpose as an educational aid rather than a cheating tool.