Avatar of Daniel Kozusek
Player Profile

Daniel Kozusek FM

chessS1r Cardiff Since 2019 (Active) Chess.com ♟♟♟♟♟♟
51.0% W 43.1% L 5.8% D
Bullet
2411
2148W 1838L 189D
Blitz
2609
2346W 1968L 325D
Rapid
2251
13W 7L 2D
Daily
2030
6W 0L 0D

Daniel Kozusek Chess Biography

Daniel Kozusek, better known online as chessS1r, is a sharp FIDE Master who has carved out a reputation as a Blitz specialist with a flair for the dramatic. From his early days grinding online games to earning his title, he brings a mix of tactical fireworks and stubborn defense that keeps opponents guessing. His preferred time control is Blitz, where quick decisions turn into legendary battles.

Signature Openings and Style

Kozusek loves launching into the Amazon Attack right out of the gate, often following it up with aggressive lines like the Siberian Attack to overwhelm foes. He also mixes in the London System: Poisoned Pawn Variation for surprise value, turning quiet positions into chaotic skirmishes. His style leans tactical, with high comeback rates and a love for long endgames that test patience.

Notable Rivalries

One of his fiercest matchups comes against Never_walk_alone, where their encounters feature wild swings and brilliant saves. These games highlight Kozusek's ability to thrive under pressure, making every session a must-watch spectacle for fans.

Fun Facts and Legacy

With a sense of humor as sharp as his tactics, Kozusek often jokes that his wins come from outlasting rivals in epic marathons. As a FIDE Master, he continues to inspire the next generation with his relentless drive and creative play across thousands of games.

Bio last updated 2026-07-14