I am studying mathematics with a specialization in geometric structure at the Technical University of Berlin and am actually finding it in the final phase of my studies. In 2023, I received the Goethe-Zertifikat C2 GDS in lecture, text, written and oral expression in Berlin. I studied mathematics and calculations using a structured, analytical, and results-oriented approach. Regarding exams, my current classes on Chess.com are Bullet 2028, Blitz 2000, and Rapid 2007, with a current rating of 2125 in Bullet. I remain modest in my approach but have progressed steadily, allowing me to effectively play from the beginner level up to the advanced level (approximately 2100+). I insist on discipline, strategic reflection, and clarity, and adapt to the specific needs of the Luxembourgish elves. All my certificates are available upon request.

🇬🇧 ENGLISH VERSION I offer online lessons in German, Mathematics and Chess for students of all ages. I have over 3000 teaching hours in the last 2 years and more than 20000 hours in the last 20 years. My lessons are clear, structured and focused on fast progress and professional communication. I teach chess from beginners to advanced players and I hold the King's Diploma for Chess Teachers, obtained at the Schachbund Berlin in July 2024. I also have a personal Elo rating above 2000 in bullet, blitz, rapid and classical chess. Current ratings on April 21, 2026: Bullet 2028, Blitz 2000, Rapid 2007. My highest rating reached is 2124 in Bullet chess. Goethe C2 Berlin 2023 in reading, writing, listening and speaking passed directly. 🇩🇪 GERMAN VERSION I offer online tutoring in German, mathematics, and chess for all ages. I have over 3,000 teaching hours in the last two years and more than 20,000 hours in the last 20 years. My lessons are clearly structured and geared towards rapid progress and professional communication. I teach chess from beginners to experts and hold the King's Diploma for Chess Teachers, which I earned from the Berlin Chess Federation in July 2024. I also have a personal Elo rating over 2000 in Bullet, Blitz, Rapid, and Classical Chess. Current ratings as of April 21, 2026: Bullet 2028, Blitz 2000, Rapid 2007. My highest achieved rating is 2124 in Bullet Chess. I passed the Goethe C2 Berlin 2023 exam in reading, writing, listening, and speaking. 🇫🇷 FRENCH VERSION Je propose des cours en ligne d'allemand, de mathématiques et d'échecs pour des élèves de tout âge. This means plus 3,000 hours of training over the 2nd year and plus 20,000 hours over the 20th year. The courses are clear, structured and orientated, with rapid progression and professional communication. I'll take the first-time exams as an expert level and have the Roi diploma for professors, obtained from the Schachbund Berlin in July 2024. I'll have a superior personnel rating of 2000 in bullet, blitz, rapid et al classic. Classements current on April 21, 2026: Bullet 2028, Blitz 2000, Rapid 2007. Mon classement le plus élevé est 2124 en Bullet. Goethe C2 Berlin 2023 en lecture, écriture, écoute et expression oral réussi directement.

I am a mathematics student with a minor in physics at the Technical University of Berlin and am currently in the final stages of my academic career. I obtained the Goethe C2 GDS certificate in reading, writing, listening, and speaking directly in Berlin in 2023. I teach German, mathematics, and chess with a structured, analytical, and results-oriented approach. My chess profiles on Chess.com currently hold the following scores: Bullet 2028, Blitz 2000, Rapid 2007, with a recent peak of 2125 in Bullet. I maintain a modest yet competitive attitude and can effectively teach from beginner to advanced levels (≈2100+). I tailor my lessons to the needs of Italian students, with a focus on clarity, discipline, and strategic thinking. All my certificates can be provided upon request.

I am studying mathematics with a specialization in geometry at the Technical University of Berlin and am currently in the final stages of my studies. In 2023, I received the Goethe-Zertifikat C2 GDS in lecture, text, written, and oral expression directly in Berlin. Furthermore, in July 2024, I earned the Royal Diploma for Chess Professors and passed examinations at the Berlin Chess Federation, demonstrating a structured, analytical, and results-oriented approach. My current Chess.com classes are Bullet (2028), Blitz (2000), and Rapid (2007), with a current rating of 2125 in Bullet, which indicates that I am only effective at the beginner level from an advanced level (approximately 2100+). I strive to meet the demands of the French elite, with a particular focus on clarity, discipline, and consistent progress. All my certificates are available upon request.

I study mathematics with the current physics curriculum at the Technical University of Berlin and am currently exploring the abstract phase of my studies. I received the Goethe-Zertifikat C2 GDS certificate in Reading, Writing, Listening, and Speaking directly in Berlin in January 2023. I am proficient in German, mathematics, and diagrams with a structured, analytical, and ergonomic approach. Additionally, I hold the Royal Diploma for Chess Teachers, which I obtained from the Chess Association of Berlin in July 2024. My Chess.com ratings since Bullet 2028, Blitz 2000, and Rapid 2007, with an initial score of 2125 in Bullet, demonstrate that I have a strong student (approximately 2100+) who is proficient in both. I pass the Unterricht an die Bedürfnisse der Deutschen Schüler and, mit besondeem Fokus auf Klarheit, Disziplin et strategisches Denken. All the certificates you have are ready to be used. R.J.