IM Jonasz Baum Full name Jonasz Baum Born 2004 (age 22) Place of birth Federation Poland Profiles #500 World Ranking 2447 Classical 2375 Rapid 2388 Blitz Rating Bio Most Played Openings White Pieces Closed Sicilian Defense: Traditional Line (8 games) Sicilian Defense: Open, Najdorf, Adams' Attack (6 games) Queen's Gambit Declined (4 games) Queen's Gambit Declined: Catalan Opening (4 games) Nimzo-Indian Defense: Romanishin-Kasparov System (4 games) Black Pieces English Opening: Symmetrical Variation (5 games) Queen's Gambit Declined: Janowski Variation (5 games) Queen's Gambit Declined (5 games) English Opening: Agincourt Defense (4 games) Closed Sicilian Defense (4 games) Games Players Result Moves Year Jonasz Baum (2449) Jan Smeets (2562) 1-0 40 2026 Jonasz Baum (2449) Nikita Vitiugov (2667) ½-½ 36 2026 Jonasz Baum (2449) Iegor Krivoborodov (2537) ½-½ 30 2026 Lorenzo Lodici (2590) Jonasz Baum (2449) 1-0 53 2026 Nijat Abasov (2593) Jonasz Baum (2449) 1-0 53 2026 Arthur Pijpers (2473) Jonasz Baum (2449) 0-1 73 2026 Jonasz Baum (2457) Harshavardhan G B (2405) 1-0 85 2025 Jonasz Baum (2457) Marius Deuer (2505) 1-0 33 2025 Jonasz Baum (2465) Raphael Lagunow (2440) 1-0 56 2025 Jonasz Baum (2469) Vahap Sanal (2557) 1-0 39 2025 Show All Games