Biyaherong Chess is a complete training and coaching platform created by FM Deniel Causo aka aka Biyaherong Chess Coach. Designed for players of all levels, it combines professional training tools, smart technology, and real coaching experience into one powerful app. Train with a wide variety of puzzles including Thematic, Turbo, Daily, Rated, and Puzzle Streak modes—carefully designed to sharpen your tactical vision and consistency. Learn directly from FM Deniel Causo through exclusive tutorial videos that guide you step-by-step like a real coach. Analyze your games using a complete analysis board powered by a strong engine and a database of over 3 million master games. Get deeper insights, discover better moves, and understand positions like a professional. Have questions? Use the Ask-a-Coach AI system—an intelligent assistant designed to respond just like Coach Deniel, helping you anytime, anywhere. Enjoy playing against fun chess bots with different strengths, perfect ...