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⭐⭐⭐⭐⭐ I’ve worked with Jonas at Pegasus Chess for a year and couldn’t be happier. Before meeting him, I’d played ~50,000 games but had plateaued and wasn’t improving. Since joining, my ratings have increased 200–300 points depending on the time control. Jonas is knowledgeable, patient, affordable, and very responsive. His weekly classroom sessions, where he reviews student games and teaches high-level concepts, are my favorite part of the program. Highly recommend Jonas!