Avatar of Zdenko Kozul

Zdenko Kozul GM

Username: blefer66

Location: zagreb

Playing Since: 2015-09-10 (Active)

Wow Factor: ♟♟♟♟♟♟

Chess.com

Rapid: 2500
0W / 1L / 0D
Blitz: 2831
14644W / 17804L / 2397D

About Zdenko Kozul

Zdenko Kozul is a celebrated chess Grandmaster known for his dynamic and strategic approach to the game. Renowned on the blitz battlefield, Kozul has thrilled fans with his rapid-fire moves and tactical prowess. His games often showcase a blend of deep preparation and creative flair, especially shining in time-pressure situations.

Chess Career Highlights

  • Title: Grandmaster
  • Peak Blitz Rating: 2884 (July 2024)
  • Preferred Time Control: Blitz
  • Extensive experience with over 13,000 wins and more than 16,000 games lost in blitz, reflecting relentless competitive spirit.
  • Known for a remarkable comeback rate of nearly 88%, proving resilience against adversity.

Playing Style

Kozul's style is characterized by:

  • Early resignation rate is impressively low at 0.62%, showing his fighting spirit.
  • Long and complex endgames, with an average of around 79 moves per game, indicating his endurance and strategic depth.
  • Strong tactical awareness, boasting a 40.6% win rate after losing a piece and an 87.79% comeback rate.
  • Preferred openings include Queen's Gambit Declined, Catalan Opening, Sicilian Defense variations, and the King's Indian Defense.
  • Wins slightly more often with White pieces (~44.21%) than Black (~39.88%), but still formidable regardless of color.

Notable Opponents & Records

Zdenko Kozul has battled a wide range of opponents in online chess play, enjoying significant success against many, such as:

  • Honestgirl (239 games) with a tough but competitive record.
  • Want2lose (214 games), showing his readiness to face persistent rivals.
  • Stollenmonster and Sumopork among frequent competitors.

He is known for maintaining spirited fights and interesting games against numerous challengers, ranging from newcomers to seasoned players.

Fun Facts

  • Zdenkoโ€™s blitz skills are so sharp that his longest winning streak reached an astonishing 28 games!
  • He is also noted for his psychological resilience, with a tilt factor of merely 14, proving he can keep calm under pressure.
  • Oddly enough, his best time to perform is 5:00 AM โ€” a true early bird blitz master!

Coach Chesswick's Profile Photo
Coach Chesswick

Game Overview

Zdenko, your recent blitz games show a solid performance with a strength adjusted win rate close to 49.5%, indicating competitive play against a strong pool of opponents. Your 1-month rating gain of 12 points and an upward trend slope show recent improvement, though the longer-term trends over 3 and 6 months highlight some inconsistency, with ratings dipping slightly before recovering.

What You're Doing Well

  • You are successfully leveraging well-known openings such as the Sicilian Defense and King's Indian Defense. This consistent use shows good opening preparation.
  • Strong endgame technique was visible in your wins where you converted material and positional advantages effectively.
  • Your active play and timely exchanges helped you gain the initiative in multiple games, especially when playing against players around or above your rating.
  • Good use of tactical motifs: Your games showed sharp tactical awareness, especially in complex middle-game positions.

Areas to Improve

  • Handling Pressure in Critical Positions: Some losses involved tough endgames or strategic complexity where a small mistake compounded. Working on converting or defending slightly worse positions under time pressure could add important wins.
  • Time Management: A few noticed losses were due to time forfeits or running short on time, emphasizing the need for better pacing in blitz games. Consider small practical steps like pre-moving in safe positions and avoiding time-consuming calculations when not critical.
  • Opening Variety and Flexibility: While specializing helps, adding a few surprise weapons or deeper lines in your current openings could prevent opponents from comfortably equalizing early.
  • Middlegame Strategic Depth: Some games showed opportunities to improve strategic planning around pawn structure and piece activity. Studying plans from master games in your favored openings could help.

Focused Training Suggestions

  • Review your lost games, especially the critical moments near the end, to understand what allowed your opponents to gain the edge. Zdenko Kozul can also consider annotating games for self-reflection.
  • Spend time on specialized endgame training, prioritizing positions with king and pawn majorities, or rook endgames that appeared in your matches.
  • Incorporate timed tactical drills to increase your speed and accuracy under blitz conditions.
  • Analyze key opening lines from your recorded games - for example, the Sicilian Defense B52 and B80 lines you used. Knowing key middle-game plans after these openings will improve your comfort in those positions.

Next Steps

Continue building your momentum by combining practical play and focused study sessions. Your recent upward rating trend is encouraging; sharpening your time management and strategic play can elevate your strength further. Remember, consistent review and adjustment will lead to lasting improvement.



๐Ÿ†š Opponent Insights

Recent Opponents
Denes Boros 20W / 59L / 4D View
Mukhammadali Abdurakhmonov 0W / 1L / 0D View
Alfonso Jose Alfaro Rojas 5W / 5L / 0D View
Jose Miguel Fernandez Garcia 2W / 1L / 1D View
gmlerepompa3000 1W / 0L / 0D View
Daniel Garcia Ramos 14W / 14L / 1D View
Antoni Kozak 19W / 31L / 4D View
Joaquin Fiorito 7W / 6L / 1D View
onegust 13W / 10L / 1D View
German Spata 2W / 2L / 0D View
Most Played Opponents
honestgirl 69W / 147L / 23D View Games
Safal Bora 77W / 130L / 17D View Games
Egor Baskakov 30W / 121L / 13D View Games
Tomi Nyback 47W / 97L / 10D View Games
Ilya Smirin 43W / 93L / 16D View Games

Rating

Year Bullet Blitz Rapid Daily
2025 2807
2024 2672
2023 2774
2022 2743
2021 2400 2621
2020 2682 1021
2019 1732 2624
Rating by Year201920202021202220232024202528071732YearRatingBulletBlitz

Stats by Year

Year White Black Moves
2025 885W / 983L / 118D 744W / 1081L / 147D 80.5
2024 1251W / 1468L / 177D 1082W / 1632L / 184D 80.1
2023 931W / 1162L / 129D 821W / 1221L / 174D 81.1
2022 699W / 841L / 139D 608W / 910L / 160D 83.2
2021 976W / 1126L / 183D 906W / 1201L / 202D 82.8
2020 1370W / 1508L / 181D 1304W / 1555L / 197D 81.4
2019 1511W / 1432L / 180D 1422W / 1534L / 196D 80.1

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
King's Indian Defense: Orthodox Variation 1381 627 650 104 45.4%
King's Indian Defense: Larsen Variation 1210 506 626 78 41.8%
Sicilian Defense 819 283 482 54 34.5%
Australian Defense 767 343 379 45 44.7%
Catalan Opening 754 346 352 56 45.9%
Diemer-Duhm Gambit (DDG): 4...f5 738 333 365 40 45.1%
Bogo-Indian Defense 727 348 348 31 47.9%
Amazon Attack: Siberian Attack 720 298 372 50 41.4%
Sicilian Defense: Alapin Variation 689 264 371 54 38.3%
East Indian Defense 676 218 398 60 32.2%
Bullet Opening Games Wins Losses Draws Win Rate
Australian Defense 2 0 2 0 0.0%
King's Indian Defense: Four Pawns Attack 1 1 0 0 100.0%
Diemer-Duhm Gambit (DDG): 4...f5 1 1 0 0 100.0%
Rapid Opening Games Wins Losses Draws Win Rate
Amazon Attack: Siberian Attack 1 0 1 0 0.0%

๐Ÿ”ฅ Streaks

Streak Longest Current
Winning 28 0
Losing 14 2
๐Ÿž Report a Problem