Chess Opener PRO

Chess opening prep with an opening tree, ECO encyclopedia, GM repertoires, and Stockfish analysis.

iOSEmergingApp Store (US)★ 4.4 · 80 ratingsone_time

A mobile app offered as a one-time purchase that combines an opening tree, ECO encyclopedia, GM repertoires and integrated Stockfish analysis to centralize opening preparation. It helps serious players bring theory and engine evaluation together for deeper study and practical preparation. The app is aimed at dedicated chess players seeking reference and training resources and has received positive user feedback.

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