Vesna Bogdanovic (VesnaTesting64): The WCM Who Made Bullet Chess Her Kingdom
Meet Vesna Bogdanovic
Vesna Bogdanovic, known across the online chess world as VesnaTesting64, is a FIDE Woman Candidate Master with a bullet rating that would make many grandmasters sweat. Her preferred time control is bullet, and it shows. With a peak 2751 (2026-02-16) of 2751, she has built one of the most distinctive identities in online chess: a flag hunter, a Czech Defense devotee, and a player who simply refuses to stop clicking.
A Bullet Grind Like No Other
Since June 2021, Vesna has played more than 76,000 rated bullet games. She started near 1777, survived the swings, and climbed to a 2751 (2026-02-16) peak of 2751 in February 2026. Her rating journey is a long, noisy climb:
The volume is the real headline. More than 34,600 bullet wins, a longest winning streak of 17, and a longest losing streak of 13. She plays at all hours, but her golden hour is 15:00, when her win rate climbs to 48%. Saturday is her best hunting day, and she saves her sharpest chess for rated games, where her win rate jumps nearly 10 points.
The Czech Defense and a Lifetime of 1.e4
Vesna's opening choices are remarkably consistent. As Black, she has played the Czech Defense more than 10,000 times in bullet, a solid setup that invites long, maneuvering battles. As White, she is a 1.e4 loyalist, facing the Sicilian Defense: Closed, the Caro-Kann Defense, the French Defense, and the Vienna Gambit with striking regularity.
Her signature position is the Czech Defense after 3...c6:
In blitz, her most profitable surprise is the Amazon Attack: Siberian Attack, where she scores close to 59%.
Rivalries: The fischer_of_rivia Wars
No profile of Vesna is complete without her eternal rival, Milos Popovic. They have clashed 625 times, with fischer_of_rivia holding the edge: 299 wins to Vesna's 180, plus 146 draws. It is a rivalry built on rematch buttons, mutual flag falls, and a shared refusal to resign. A hard-fought bullet classic
She has also built deep rivalries with Anselm Wagner, TRaptors2019, and mathnerd55, each with more than 120 games against her. These are not one-off encounters; they are the ongoing education of a bullet specialist.
The Psychology of a Flag Hunter
Vesna almost never resigns early. Her bullet losses include more than 24,000 by timeout and only about 11,700 by resignation. She will make you prove every point. Her games are long by bullet standards, averaging around 90 moves for a win, and nearly nine out of ten reach the endgame.
She is also a master of the comeback, recovering from lost positions 74.3% of the time. Even after losing a piece, she still wins 43.7% of the time. Her one-sided loss rate is only 1.46%, so when she loses, it is usually a fight to the last second. Her tilt factor of 13 suggests that even a brutal flag loss costs her only a few points before she queues up again.
Beyond Bullet: More Time, More Danger
When the clock slows down, Vesna only gets more dangerous. Her blitz peak is 2725 (2025-11-04) 2725, her rapid peak is 2427 (2026-08-07) 2427, and her daily peak is 2274. Her strength-adjusted rapid win rate is about 56.5%, the strongest of any time control. She beats lower-rated opponents 64% of the time, holds her own against equals, and still takes down higher-rated players 28% of the time. Give her 90 minutes and she might even enjoy the calm. Give her 90 seconds and she will still find a way to flag you.
The Numbers Behind the Legend
- Over 76,000 rated bullet games played since 2021.
- Longest winning streak: 17 games.
- Nearly 9 out of 10 games reach the endgame.
- More than 15,000 bullet wins by timeout.
- Favorite weapon as Black: the Czech Defense, played over 10,000 times.