Zlatko Arsenovic (zlaki) — Rapid-fire chess raconteur

Zlatko Arsenovic, known online as zlaki, is a prolific chess player whose career reads like a long series of coffee-fueled Bullet marathons and Blitz sprints. A creator of chaos and clever tactics, zlaki prefers the adrenaline of Bullet games but brings deep opening knowledge and stubborn endgame play to every time control.

Preferred time control: Bullet — lightning decisions, long memory.
Total decisive approach: tens of thousands of fast games across Bullet and Blitz.
Signature traits: tactical resilience, high endgame frequency, and an uncanny comeback rate.

Overview & career arc

From humble 1200-Bullet beginnings in 2010 to sustained 1800–1900 performance in recent years, zlaki has logged an enormous volume of games and learned to win (and lose) fast. The profile below gives a sense of scale: thousands of Bullet and Blitz games, packed openings experience, and streaks that would make any coach raise an eyebrow.

Bullet record highlights: tens of thousands of games played with a strong positive win surplus — a grinder who rarely stops.
Blitz and Rapid play show the same tactical flavor but with slightly different pacing and outcomes.
Want to see the long-term Bullet trend?

Playing style & strengths

Funny enough, zlaki plays like someone who sprinted through opening theory, tripped over a trap, then turned that trip into a tactical fireworks display.

Aggression + endurance: White win rate ~54.5% and Black win rate ~52.9%, showing consistent results from either side.
Endgame savant (or stubborn): Endgame frequency 79.8% — many games go deep into technical play.
Move economy: Avg moves per win ~67; per loss ~72 — long, decisive battles are the norm.
Tactical resilience: Comeback rate 77.25% and >51% win rate after losing a piece — never count zlaki out.
Psychology notes: Best time of day to play — around 23:00; Tilt factor moderate at 17.

Openings & repertoire (high-level)

Whether playing White or Black, zlaki leans on practical, often sharp systems that invite imbalance and practical chances. A few recurring themes appear across hundreds or thousands of games.

Favorites include: KGD: Classical, 3.Bc4, Caro-Kann Defense, Dutch Defense, and the cheeky Blackburne Shilling Gambit.
Top Bullet openings by games: Australian Defense, Dutch Defense, KGD 3.Bc4 — heavy exposure means deep practical knowledge.
As White and Black both, there are strong win rates in the Ruy Lopez Benelux lines and many classical systems.

Career highlights & milestones

Zlaki's journey is marked less by a single headline and more by relentless volume and periodic peaks of elite performance in fast time controls.

Peak Blitz moment: — a show of top-level speed chess mastery.
Peak Rapid: notable high in 2021 (a burst of high-rated Rapid results).
Impressive streaks: longest winning streak of 29 games; longest losing streak of 17 — both speak to extremes experienced in a high-volume career.
Stamina: thousands of games across multiple years — a marathoner in a sport of sprints.

Notable opponents & rivalries

Zlaki has squared off many times against a handful of regulars; these rivalries are part of the online ecosystem and a great place to study practical lines and psychological edges.

Most-played opponent: viktor516 — 164 games (a true sparring partner).
Other frequent opponents: medmot (119 games), matedama (110), wizardatwork (97).
Head-to-heads are deep and competitive — many matches swing both ways.

Fun facts & quirks

A little levity to balance the analytics.

Best time to ambush an opponent: around 23:00 — czar of the late-night tactics.
Early resignation rate is low (only ~0.99%) — zlaki fights on to the bitter end.
Favored traps: don’t be surprised by a cheeky Blackburne Shilling Gambit or a sudden tactical skewer in the middle game.
If you’re preparing to face zlaki: expect long games, solid endgames, and creative tactical counters.

Where to watch & follow

Study zlaki’s games for rich examples of practical opening play and fast-time control decision-making. If you enjoy Bullet chess, you’ll learn a lot from the volume and variety here.

Try analyzing his Ruy Lopez Benelux and KGD 3.Bc4 games for practical ideas.
Dig into the long-run Bullet chart to see spikes and trends: