Avatar of Krzysztof Jakubowski

Krzysztof Jakubowski GM

Username: Harry_Rakkel

Location: Warszawa

Playing Since: 2015-05-16 (Inactive)

Wow Factor: ♟♟♟♟

Chess.com

Daily: 400
8W / 14L / 0D
Rapid: 2341
13W / 19L / 5D
Blitz: 2805
1456W / 1014L / 217D
Bullet: 2467
68W / 38L / 0D

Krzysztof Jakubowski – The Grandmaster Who Moves Faster Than Your Wi-Fi

Krzysztof Jakubowski, often known by his chess.com alias Harry_Rakkel, is not your average chess player. Awarded the prestigious title of Grandmaster by FIDE, he combines razor-sharp tactical awareness with a penchant for blitz battles that would make even Magnus Carlsen raise an eyebrow.

A Journey Through the Blitz Storm

Beginning with a modest blitz rating under 1500 back in 2015, Krzysztof didn’t just crawl up the ladder—he catapulted himself to a peak blitz rating of a staggering 2970 in April 2020. Yes, you read that right. Nearly 3000 rating points in lightning-fast games where seconds tick away and panic is a luxury you can’t afford.

With over 2,700 blitz games logged, boasting 1,531 wins, this Grandmaster’s opening repertoire is as mysterious as a secret agent’s dossier, intriguingly nicknamed Top Secret by his fans (and opponents who never quite cracked it). His win rate of ~54% in blitz speaks volumes about his consistency and tenacity under pressure.

Not Just a Speed Demon

If you thought Krzysztof was just a bullet shooter, think again. He’s shown respectable agility in bullet chess with a peak rating over 2500, and rapid play is no stranger either, where his highest rating touched 2589. Even daily chess gets his respect, holding a respectable rating of 400.

Style: The Yin and Yang of Chess

Krzysztof enjoys the strategic depth as much as tactical fireworks, evidenced by an overwhelming 83.7% participation in endgames and an impressive 81.95% comeback rate after setbacks. This guy could lose a piece, curse, then flip the entire board around with a grin—talk about psychological stamina!

Not one to surrender early, he resigns only about 5.28% of his games prematurely—probably just so he can say, "Wait, did I miss something?" His average games stretch over 75 moves, proving he's in it for the long haul no matter the format. And if you’re playing after 6:00 AM, watch out—according to his own stats, that’s when his knight really starts dancing.

Famous Victories & Recent Battles

Recent wins include a demonstration of mastery in the Caro-Kann Defense Exchange Rubinstein Variation, where patience met precision and prompted resignation. His games contain dazzling tactics, cool endgame technique and the occasional sneaky Queen maneuver.

Losses? Even the mighty fall—Krzysztof’s longest losing streak was 21 games, which by blitz standards is basically a dramatic Netflix cliffhanger. But worry not, he's no stranger to bouncing right back.

Not Just Knight Moves

When he's not on the 64 squares, Krzysztof probably enjoys telling stories of his victories—each move a plot twist—and the rare times he lets a pawn slip. A chess scholar, speed demon, and strategist, his relentless grind guarantees that every game is a spectacle.

Pro tip: Catch him on Tuesdays, Fridays, or during the magical hour of 6 AM (yes, really) for the best chess experience. But be prepared: underestimating this Grandmaster might just result in your king going on a never-ending vacation.


Coach's Avatar

What You're Doing Well

Krzysztof, your recent blitz games demonstrate solid strategic understanding and tactical alertness. Here are some highlights:

  • You play the Italian Game's Knight Attack confidently, effectively utilizing aggressive piece placement and opening lines to pressure your opponent early on.
  • Your use of tactical motif like sacrificing a knight to disrupt your opponent's coordination (as in the French Defense Rubinstein Fort Knox variation game) shows deep calculation ability under time pressure.
  • Your endgame technique is commendable, often converting material advantages efficiently, particularly pawn promotion races and king activity.
  • Good time management in most games, allowing you to maintain pace while complex decisions arise, as seen in your handling of complications in critical positions.
  • Your current rating trend, showing a recent increase and positive slope in rating gains over 1, 3, and 6 months, suggests continued improvement and consistent performance.

Areas to Improve

Even strong players can find room to improve, especially in blitz where quick decisions are required:

  • Handling the Najdorf Variation: Your win rate here is around 44%, slightly below your average, indicating opportunities to refine your preparation and response to opponents using this sharp opening.
  • Reduce losses in key middle-game positions: Review the loss against the Sicilian Defense French Variation where pawn structure and piece coordination weaknesses were exploited. Strengthening your defensive tactics and positional awareness could help.
  • Deepen opening repertoire: While your main openings perform well, diversifying and refining your responses could prevent opponents from steering you into uncomfortable lines.
  • Optimize transitions to endgame: In some games, transitions could be smoother to leverage your endgame skills earlier, minimizing unnecessary complications and risk.
  • Work on resilience under pressure: Some recent losses were due to resignations in cramped positions; practicing defensive resourcefulness and counterplay ideas could extend survival.

Training Recommendations

To continue your progress, consider the following focused work:

  • Review and analyze your opening games in the Najdorf Variation; identify recurring weaknesses and explore model games from master level play in this line.
  • Practice tactical puzzles that emphasize defending tricky middle-game positions and counter-attack resources.
  • Study endgame positions frequently appearing from your openings, especially rook and pawn endings, to increase confidence in closing out games faster.
  • Use slower time controls occasionally to deepen calculation and positional understanding, reducing impulsive mistakes in blitz.
  • Incorporate regular review sessions of your lost games to spot early inaccuracies and recurring patterns leading to defeat.

Keep Up the Momentum

Your recent positive rating trends indicate you are on the right path. Balancing studied refinement with your natural instincts will help maintain and raise your level further. Keep focusing on sharp opening preparation, timely tactics, and robust endgame play.

Remember, each game is a valuable lesson. Use these insights constructively, and your blitz performance will continue to improve.



🆚 Opponent Insights

Most Played Opponents
ravi kumar 19W / 1L / 1D
IntuitiveBlow 11W / 7L / 2D
Michał Luch 3W / 9L / 0D
Szymon Gumularz 3W / 7L / 2D
pknm 1W / 10L / 0D

Rating

Year Bullet Blitz Rapid Daily
2025 2805
2024 2733 2341
2023 2650
2022 2617 2333 400
2021 2467 2561 2250
2020 2444 2659 2250
2019 2276 2493
2018 2212 2268
2016 2462
2015 2407
Rating by Year201520162018201920202021202220232024202528052212YearRatingBulletBlitzRapid

Stats by Year

Year White Black Moves
2025 61W / 26L / 2D 45W / 39L / 6D 82.0
2024 129W / 66L / 13D 110W / 85L / 18D 77.7
2023 95W / 45L / 15D 66W / 65L / 10D 85.4
2022 83W / 69L / 11D 85W / 71L / 11D 79.2
2021 125W / 67L / 14D 92W / 95L / 15D 82.3
2020 341W / 238L / 59D 340W / 251L / 49D 77.4
2019 36W / 13L / 3D 33W / 18L / 2D 69.5
2018 4W / 4L / 0D 4W / 4L / 0D 67.6
2016 1W / 0L / 0D 0W / 0L / 0D 139.0
2015 2W / 0L / 0D 3W / 0L / 0D 58.4

Openings: Most Played

Rapid Opening Games Wins Losses Draws Win Rate
Catalan Opening 2 2 0 0 100.0%
Italian Game: Two Knights Defense 2 0 2 0 0.0%
Sicilian Defense: Taimanov Variation, Bastrikov Variation 2 0 2 0 0.0%
East Indian Defense 2 1 1 0 50.0%
Nimzo-Indian Defense 2 0 1 1 0.0%
Sicilian Defense: Kan Variation, Knight Variation 2 1 0 1 50.0%
Blackburne Shilling Gambit 2 1 1 0 50.0%
Sicilian Defense: Closed 2 0 2 0 0.0%
Modern 2 0 1 1 0.0%
QGD: Exchange, 5.Bg5 c6 6.Qc2 g6 2 1 1 0 50.0%
Daily Opening Games Wins Losses Draws Win Rate
Unknown 4 4 0 0 100.0%
Colle System: Rhamphorhynchus Variation 3 2 1 0 66.7%
Australian Defense 3 1 2 0 33.3%
Barnes Defense 2 0 2 0 0.0%
Caro-Kann Defense 2 0 2 0 0.0%
Modern 1 0 1 0 0.0%
French Defense 1 0 1 0 0.0%
English Opening: Drill Variation 1 0 1 0 0.0%
Modern Defense: Pterodactyl Variation 1 0 1 0 0.0%
King's Indian Attack 1 0 1 0 0.0%
Bullet Opening Games Wins Losses Draws Win Rate
Modern 6 2 4 0 33.3%
London System: Poisoned Pawn Variation 5 3 2 0 60.0%
Sicilian Defense: Closed 4 1 3 0 25.0%
King's Indian Attack 4 2 2 0 50.0%
East Indian Defense 3 3 0 0 100.0%
Australian Defense 3 3 0 0 100.0%
Czech Defense 3 1 2 0 33.3%
Sicilian Defense: Accelerated Dragon, Exchange Variation 3 1 2 0 33.3%
Alekhine Defense 3 2 1 0 66.7%
Sicilian Defense: Alapin Variation 3 3 0 0 100.0%

🔥 Streaks

Streak Longest Current
Winning 14 1
Losing 21 0