Biography
JaroslavSobek is a titled chess player who has carved out a reputation as a sharp Blitz specialist. Earned the FIDE Master title from FIDE, they bring a calm, endgame-friendly approach to fast time controls and a willingness to experiment with a wide opening repertoire. In online blitz circles, JaroslavSobek is known for grinding out long, strategic battles and delivering tenacious defenses when the clock starts to bite. Their style blends practical decision making with a flair for tactical motifs when the moment calls for it.
Career highlights
In recent years, JaroslavSobek has been a persistent presence in blitz events, peaking with a Blitz rating of 2335 in November 2024. They maintained a high-volume schedule through 2024 and into 2025, accumulating hundreds of games and testing themselves against a wide field of opponents. The journey features notable rallies and stamina in long sessions, underscored by a strong endgame awareness.
- Peak Blitz rating: 2335 (2024-11-05)
- Longest winning streak: 5 games
- Longest losing streak: 14 games
- Preferred time control: Blitz
Their persistence and growth reflect the mindset of a dedicated competitor who enjoys the challenge of rapid-fire decisions and complex endings.
Opening repertoire and playing style
JaroslavSobek maintains a diverse blitz repertoire with a tilt toward sharp, dynamic lines. Selected openings and their Blitz performance include:
- Sicilian Defense: Najdorf Variation — 36 games, 12 wins, 23 losses, 1 draw; WinRate 33.33%
- Sicilian Defense: O’Kelly Variation — 95 games, 31 wins, 54 losses, 10 draws; WinRate 32.63%
- King's Indian Defense: Makogonov Variation — 39 games, 10 wins, 27 losses, 2 draws; WinRate 25.64%
- QGD: 3.Nc3 Bb4 — 18 games, 3 wins, 14 losses, 1 draw; WinRate 16.67%
Beyond the openings, their approach favors long, rich middlegame battles and resilient endgames, a testament to their endgame frequency and tactical awareness.
Competitive spirit and field presence
JaroslavSobek’s games reveal a pragmatic, endurance-focused fighter who thrives in the grind of blitz. The journey includes a notable comeback capacity and a robust endgame temperament, backed by a tactical sense that surfaces in tight moments.
- Comeback rate after losing a piece: 76.1%
- Endgame frequency: 80.76%
- Notable opponent encounters: faced a diverse field, including frequent opponents such as mirchi_26, kyiv-volvo, navyblue1, fmalexhdez, and mise2020