Avatar of Jure Borisek

Jure Borisek GM

Username: GM_Donatello

Playing Since: 2016-10-30 (Active)

Wow Factor: ♟♟♟♟♟♟

Chess.com

Rapid: 2455
8W / 5L / 9D
Blitz: 2942
6020W / 6405L / 1267D
Bullet: 2905
334W / 333L / 45D

Grandmaster Jure Borisek

Meet Jure Borisek, a Grandmaster whose chess prowess has been honed to razor-sharp precision over years of battling on the 64 squares. Jure, sometimes known by the username GM_Donatello, is a force to be reckoned with in blitz, bullet, and rapid chess formats. A true connoisseur of fast chess, Jure's peak blitz rating soared to an impressive 2893 in May 2025 — now that's what we call a speed demon!

Jure's style is a blend of patience and tactical fireworks: with an average of 80 moves per win, it’s clear that this grandmaster loves a good long strategic battle rather than just quick tactical skirmishes. Jure's comeback rate is a staggering 89%, proving that giving up is simply not in their vocabulary — even when losing a piece, the win rate after turning the tables is a respectable 44%.

When it comes to openings, Jure embraces the mystery of the "Top Secret" repertoire in blitz with over 11,000 games played — a testament to both endurance and versatility. Other favorites include the London System and the Modern Defense, showcasing a solid yet aggressive approach. Not to be pigeonholed, Jure also ventures into sharper lines like the Sicilian Nyezhmetdinov Rossolimo Attack.

Jure’s psychological resilience has a tilt factor of only 22, so don’t expect emotional outbursts after a tough game — this player faces adversity with calm and cool logic. Interestingly, the best time of day for Jure’s gameplay peaks at the stroke of midnight, when the rest of us are fumbling for our coffee mugs.

With an astounding 5,313 wins in blitz alone and nearly as many losses, it’s clear that Jure doesn’t shy away from grinding it out, win or lose. Just don’t challenge Jure at 0:00 in the morning — the combination of grandmaster skill and nocturnal sharpness is deadly!

In short: Jure Borisek is a relentless chess gladiator, a late-night strategist, and a grandmaster who turns every game into a thrilling dance of brains versus brains. If chess were a video game, Jure’s got the high score — and maybe even a secret cheat code or two.


Coach Chesswick's Profile Photo
Coach Chesswick

Progress snapshot

You’ve shown a solid foundation in blitz with a long-term upward trend. There was a recent dip in the short term, which is common in rapid formats when you test ambitious ideas under time pressure. Use that as a cue to tighten decision-making in sharp moments and consolidate safer, repeatable plans for tricky positions.

What you’re doing well

  • You consistently create active play and keep the opponent under pressure, especially when pieces are coordinating on open lines and targeting weak squares around the king.
  • Your openings show solid understanding and you reach dynamic middlegames where you can press for advantages rather than just survive the position.
  • You are capable of sustaining tactical motifs, finding forcing moves, and turning small advantages into practical winning chances in blitz.

Key patterns to improve from recent games

  • Time pressure can tempt overreaching in complex lines. In blitz, aim to simplify to clearly advantageous endgames when possible, and avoid risky sacrifices unless the payoff is concrete.
  • Endgames require precise technique. There are opportunities to convert or salvage games more reliably by practicing rook endgames and king activity in simple, practical positions.
  • Defensive calculation matters when your opponent launches a sustained attack. Build a small toolkit of defensive resources (checks, counterplay ideas, and safe simplifying moves) to weather rough middlegames without losing material.
  • Consistency in opening plans helps with time. If you’re experimenting, add a compact, two-opening repertoire for blitz you can rely on under time pressure rather than many flexible but deep lines.

Opening strategy and practical tweaks

Your results with solid, classical systems are promising. To make blitz easier and more consistent, consider a tighter, two-opening repertoire for white and two for black. This reduces decision fatigue and helps you reach balanced middlegames faster.

  • Keep using solid, time-tested setups (for example, a robust, development-focused path if you play as white against common responses, and a solid, counter-attacking plan if you play as black).
  • When facing sharp responses, have a safe, principled line you know well so you’re not forced into heavy calculation just to reach a playable middlegame.
  • Review a few model middlegames from your main openings so you recognize typical plans and common tactical motifs early in the game.

Time management and decision making in blitz

  • Adopt a two-pass approach in critical positions: first, look for forcing moves and candidate plans; second, verify the most promising move with a quick 2-3 move calculation mate-in-3 style check.
  • Keep a mental clock check: if you’re near a time crunch, switch to a simpler plan (develop, trade to reach a safe endgame, and avoid speculative sacrifices).
  • Pre-commit to a short post-game review habit to identify where you spent too long and what kind of positions you struggle with most under pressure.

4-week practical improvement plan

  • Week 1
    • Daily 15-20 minutes of tactics practice focused on common patterns (pins, forks, skewers, back-rank ideas).
    • Play 1-2 blitz games with a simple plan, then review each game quickly to spot time-pressure moments and where you could simplify safely.
    • Study your two main openings and extract a few clear middlegame ideas to expect from them.
  • Week 2
    • Endgame basics: practice rook endings and king activity with short, practical drills (10-15 minutes).
    • Continue tactics; add one tactical theme per day (example: attack on the king’s side, or a king-central breakthrough) and look for related patterns in your games.
  • Week 3
    • Analyze 2 recent games to identify turning points; write down alternative, safer plans you could have chosen at those moments.
    • Strengthen your two-opening plan by memorizing 2-3 critical replies and expected middlegame ideas for each.
  • Week 4
    • Repertoire consolidation: lock in 2 solid lines for white and 2 for black; practice 3-4 short games daily focusing on these lines.
    • Set a personal progress check: measure whether your time remains manageable, your decision-making improves in critical middlegames, and your endgame conversion increases.

Next steps

Keep focusing on practical, repeatable plans in blitz, and build a small, reliable repertoire you can trust under time pressure. Regular post-game reviews and targeted drills (tactics, endgames, and a compact opening prep) will help you translate the long-term improvement into more dependable blitz results.



🆚 Opponent Insights

Recent Opponents
Shamil Arslanov 4W / 7L / 2D View
Timur Kocharin 0W / 0L / 1D View
Sasikiran Krishnan 4W / 2L / 1D View
jan_clifford_labog 1W / 0L / 0D View
kovalev_vitaly 2W / 5L / 1D View
Maksym Dubnevych 5W / 5L / 0D View
pseudobenko 0W / 1L / 0D View
letsgo_gm_2500 6W / 0L / 0D View
koulourisv 0W / 1L / 0D View
raekwon_w 2W / 4L / 0D View
Most Played Opponents
Murad İbrahimli 38W / 43L / 7D View Games
Konstantin Kodinets 24W / 29L / 9D View Games
Khatanbaatar Bazar 22W / 30L / 7D View Games
Adam Popovics 35W / 18L / 3D View Games
Ilya Smirin 15W / 30L / 9D View Games

Rating

Year Bullet Blitz Rapid Daily
2025 2905 2942
2024 2721 2604
2023 2736 2845
2022 2704 2773
2021 2754 2590 2455
2020 2750 2811 2460
2019 2528 2720 2578
2018 2575 2364 2565
2017 2656 2493 2558
2016 2759 2532
Rating by Year201620172018201920202021202220232024202529422364YearRatingBulletBlitzRapid

Stats by Year

Year White Black Moves
2025 840W / 867L / 124D 735W / 908L / 177D 73.5
2024 65W / 83L / 13D 73W / 82L / 7D 75.3
2023 224W / 268L / 53D 219W / 281L / 48D 75.0
2022 371W / 340L / 58D 303W / 403L / 74D 72.0
2021 479W / 495L / 95D 396W / 587L / 123D 71.9
2020 816W / 701L / 169D 709W / 804L / 170D 72.1
2019 402W / 305L / 57D 362W / 326L / 82D 74.0
2018 110W / 101L / 21D 89W / 106L / 41D 72.6
2017 31W / 18L / 7D 25W / 23L / 11D 81.8
2016 84W / 31L / 11D 70W / 44L / 11D 84.1

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
Caro-Kann Defense 862 414 374 74 48.0%
Barnes Defense 635 283 303 49 44.6%
Amazon Attack: Siberian Attack 417 189 189 39 45.3%
Modern 384 167 186 31 43.5%
Australian Defense 353 147 177 29 41.6%
Colle System: Rhamphorhynchus Variation 321 133 154 34 41.4%
Amar Gambit 304 126 155 23 41.5%
Sicilian Defense 287 146 113 28 50.9%
Sicilian Defense: Najdorf Variation 283 130 137 16 45.9%
London System: Poisoned Pawn Variation 268 114 127 27 42.5%
Bullet Opening Games Wins Losses Draws Win Rate
Caro-Kann Defense 52 27 22 3 51.9%
Modern 46 16 27 3 34.8%
Amar Gambit 39 25 14 0 64.1%
Nimzo-Larsen Attack 35 13 20 2 37.1%
Barnes Defense 33 20 11 2 60.6%
Australian Defense 27 10 16 1 37.0%
East Indian Defense 21 14 6 1 66.7%
Colle System: Rhamphorhynchus Variation 20 10 9 1 50.0%
Czech Defense 19 11 7 1 57.9%
Hungarian Opening: Wiedenhagen-Beta Gambit 17 9 7 1 52.9%

🔥 Streaks

Streak Longest Current
Winning 12 1
Losing 22 0
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