Tetris4Jeff
有稱號等級的棋手

Grand Master, German Champion, about 10 years of coaching experience, available for chess lessons. I am a specialist in chess openings but also can teach different types of positions. Motivated young talents favoured. I speak German, English, and a bit French and Spanish.

Oh and I also got 300 in puzzle rush survival (253 without the puzzles which appeared more than once).