Avatar of Jasper Bonenkamp

Jasper Bonenkamp

Username: JasperBo

Location: Utrecht

Playing Since: 2016-04-24 (Active)

Wow Factor: ♟♟♟♟♟

Chess.com

Daily: 1418
354W / 385L / 33D
Rapid: 1314
15W / 13L / 1D
Blitz: 1655
1541W / 1533L / 118D
Bullet: 1565
761W / 755L / 44D

Jasper Bonenkamp: A Chess Journey

Known in the chess world as JasperBo, Jasper Bonenkamp has been carving his niche on the 64-square battlefield since at least 2017. Starting from humble beginnings with a blitz rating hovering around 1100, Jasper has shown a remarkable capacity for growth (and a tiny bit of stubbornness against losses).

Over the years, Jasper's lightning-fast reflexes and tactical acumen have earned him a peak blitz rating of 1907 in March 2025 — a level where the stakes are high and blunders are punished with a side of humble pie. While his favorite time control is undeniably blitz, he is no stranger to daily, rapid, and bullet chess formats. His versatility on the clock is nothing short of impressive.

Jasper's playing style leans toward staying power, with a remarkable average of 61 moves per game, whether in victory or defeat. He’s not one to concede easily; in fact, his comeback rate is a staggering 78.67%. Although he might occasionally experience the dreaded "tilt" (a tilt factor of 16 suggests he’s human after all), his psychological resilience keeps him hunting for those delicious wins.

Master of Openings & Unpredictable Moves

Jasper has a broad opening repertoire but takes a special liking to the Queens Gambit Accepted (Old Variation) with an impressive 69.15% win rate in blitz games. He also dabbles in the enigmatic Englund Gambit, managing to surprise opponents with a 66.13% win rate—a frequency of risk-taker or chess adventurer, you decide.

On daily games, Jasper opts for the mysterious Top Secret opening with a stunning 86.49% win rate. Clearly, secrets aren’t just for espionage but for winning chess positions too.

Notable Stats & Highlights

  • Preferred Time Control: Blitz
  • Peak Ratings:
    • Blitz: 1907 (2025)
    • Daily: 1645 (2019)
    • Rapid: 1546 (2020)
    • Bullet: 1740 (2023)
  • Longest Winning Streak: 25 games (because sometimes the stars align)
  • Average Game Length: About 61 moves — clearly, Jasper enjoys a good, long battle, not the quick knockout.

The Tactical Assassin

With a 46.7% win rate after losing a piece, Jasper turns despair into hope like a true fighter. His enemies might count their lost material, but Jasper counts his chances — and usually wins by checkmate or resignation.

Recent Triumphs

Just recently, Jasper secured a victory against the formidable ChrisCram by resignation, demonstrating strong strategic pressure to force the opponent into surrender.

His last known game? A classic d4 opening leading into Grunfeld Defense—checkmate delivered in style!

Clearly, Jasper is a force to be reckoned with on the virtual chessboard.

A Word About Opponents

Jasper's most frequent nemeses include jonasachterberg and bigman1502, where battles have been intense and closely fought, showing his competitive spirit flame on every move.

Despite the ups and downs, Jasper's perseverance has kept him climbing — an eloquent testament to the unpredictable art of chess and the dedication of its players.

More than just moves, it’s about the adventure on each square.

Stats at a Glance

Overall Win-Loss-Draw Record (Blitz): 1649 - 1504 - 107

Current Mood: Calculating, plotting, checkmating… or maybe just grabbing some coffee.

Blitz Rating20172018201920202021202220232024202517021100YearBlitz Rating

Coach Chesswick's Profile Photo
Coach Chesswick

recent blitz performance: what stands out

Jasper, you’ve shown you can play lively, tactical chess in blitz. Your recent wins demonstrate you can seize initiative and convert pressure into tangible gains, especially when the position opens up and lines of attack appear. In your losses, you often maintain activity and create practical chances, but need to tighten calculation in sharp moments to avoid getting swept into tactical nets by well-prepared opponents. Overall, your ability to generate dynamic play is a strong foundation for blitz.

strengths to build on

  • Consistent willingness to complicate positions when your opponent is unprepared, which helps you generate practical chances in blitz.
  • Good piece activity in open or semi-open games; you tend to coordinate rooks and queens to create shared threats against the enemy king.
  • Ability to keep pressure and stay mentally crisp through several exchanges, which often yields chances to turn the game in your favor in the middlegame.
  • Opening choices show you’re comfortable with aggressive, tactical lines that lead to unbalanced positions where you can out-calculate your opponent under time pressure.

key improvement areas

  • Time management in complex middlegames: aim to establish a simple plan within the first 10 moves and re-check it after every major exchange to avoid getting lost in the chaos of blitz.
  • Calculation discipline in sharp lines: when you sense a tactical sequence, confirm at least two forcing continuations before committing to a plan, to avoid missing a defense or counterattack.
  • Endgame conversion: in blitz, many games hinge on accurate endgames. Practice common endgame patterns (rook endings, minor-piece vs pawns, and king activity) to convert more wins from equal or slightly worse positions.
  • Move ordering and over-ambition: while aggression is good, ensure you’re not overextending on uncertain lines. Consider safer middlegame plans when your clock is tight and the position is unclear.
  • Blunder prevention under pressure: develop a quick “blunder check” habit (ask yourself: Is my king safe? Are there immediate threats I’m missing? Am I leaving a piece en prise?) before pushing critical moves.

openings: what’s working and how to use it

Your openings data shows solid results in several active, tactical setups. Be mindful of where you perform best and lean into those lines with a focused middlegame plan. In particular:

  • Strong results with aggressive, dynamic defenses and gambit-like lines suggest you can press opponents into uncomfortable positions early. Plan to learn two or three main middlegame plans for these lines so you can transition from opening to middle game with a clear idea of where you want to go.
  • Continue to strengthen your understanding of the most successful openings (for example, the ones with the highest win rate) so you know the typical pawn breaks, piece maneuvers, and typical tactical motifs that arise.
  • For openings with lower win rates, study a few representative games to identify common missteps you’re making (for instance, over-ambitious pawn breaks or premature exchanges) and adjust move selection accordingly.

training plan: practical steps for the next weeks

  • Daily blitz puzzle focus: 15 minutes of tactical puzzles emphasizing calculation two to three moves ahead, with a strong emphasis on not over-reading lines under time pressure.
  • Endgame clinic: twice a week, practice common rook endings and king-and-pawn endings using a standard, simple set of positions to improve practical conversion in blitz.
  • Opening refinement: pick two openings you enjoy (one aggressive, one solid) and study two main middlegame plans for each. Aim to recognize the key themes within the first 15 moves and practice the transitions to those plans.
  • Post-game review routine: after each blitz session, spend 5–10 minutes reviewing at least one win and one loss with a clear focus on: - Did I have a clear plan? - Where did I start to feel time pressure? - Which decisions were based on intuition versus calculated lines?
  • Time-control practice: alternate between short blitz (3+2 or 5+0) and longer blitz (3+2 with a 1-minute increment) to train both rapid decision-making and deeper calculation under pressure.

practical takeaway

You have a strong instinct for attack and a willingness to enter complex positions, which is a great asset in blitz. Channel that energy with targeted calculation checks, a reliable time-management routine, and focused endgame practice, and you should see improvements in both results and consistency at speed.



🆚 Opponent Insights

Recent Opponents
tobatoba1 0W / 2L / 0D View
deda-branko 0W / 1L / 0D View
smokingacigar 1W / 0L / 0D View
monsieurzaccone 0W / 1L / 0D View
simone2322 0W / 1L / 0D View
suddenlobster 1W / 1L / 0D View
maximus2b 1W / 0L / 0D View
mikusbp 1W / 0L / 0D View
Most Played Opponents
jonasachterberg 35W / 12L / 1D View Games
bigman1502 12W / 22L / 1D View Games
jva18-inactive 11W / 10L / 2D View Games
koningkobe 6W / 14L / 3D View Games
korckx 7W / 15L / 0D View Games

Rating

Year Bullet Blitz Rapid Daily
2025 1382 1314 1448
2024 1574 1535 1306 1567
2023 1682 1702 1297 1552
2022 1553 1535 1346 1532
2021 1558 1460 1392 1496
2020 1455 1466 1403 1553
2019 1495 1521 1580
2018 1350 1355 1497
2017 996 1100 800
Rating by Year2017201820192020202120222023202420251702800YearRatingBulletBlitzRapidDaily

Stats by Year

Year White Black Moves
2025 218W / 190L / 18D 196W / 211L / 25D 68.7
2024 99W / 93L / 5D 85W / 103L / 7D 67.1
2023 230W / 180L / 12D 184W / 215L / 21D 70.4
2022 263W / 212L / 17D 230W / 234L / 11D 66.7
2021 95W / 82L / 5D 86W / 91L / 6D 62.4
2020 257W / 219L / 13D 226W / 251L / 10D 59.5
2019 209W / 141L / 7D 193W / 144L / 6D 55.3
2018 202W / 198L / 11D 206W / 192L / 18D 54.0
2017 14W / 12L / 1D 13W / 15L / 0D 43.4

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
Sicilian Defense 292 149 135 8 51.0%
Australian Defense 187 117 68 2 62.6%
QGA: 3.e3 c5 117 76 36 5 65.0%
Sicilian Defense: Alapin Variation 114 47 64 3 41.2%
QGD: 2...Bf5 3.cxd5 103 53 45 5 51.5%
Amar Gambit 96 69 26 1 71.9%
Bird Opening: Dutch Variation, Batavo Gambit 92 48 41 3 52.2%
Sicilian Defense: Closed 89 46 40 3 51.7%
Amazon Attack: Siberian Attack 87 40 43 4 46.0%
King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation 86 43 39 4 50.0%
Daily Opening Games Wins Losses Draws Win Rate
Sicilian Defense 49 22 26 1 44.9%
QGD: 2...Bf5 3.cxd5 43 23 19 1 53.5%
Sicilian Defense: Najdorf Variation 40 9 28 3 22.5%
Unknown Opening* 30 25 5 0 83.3%
Sicilian Defense: Alapin Variation 26 8 14 4 30.8%
QGA: 3.e3 c5 24 15 7 2 62.5%
King's Indian Defense: Averbakh Variation 23 19 4 0 82.6%
King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation 21 7 14 0 33.3%
King's Indian Defense: Averbakh Variation, Benoni Defense 20 11 7 2 55.0%
Unknown 19 18 1 0 94.7%
Rapid Opening Games Wins Losses Draws Win Rate
Sicilian Defense 5 4 0 1 80.0%
Australian Defense 5 2 3 0 40.0%
Amazon Attack: Siberian Attack 2 1 1 0 50.0%
QGD: 4.Bg5 Be7 5.cxd5 Nxd5 2 1 0 1 50.0%
Amar Gambit 2 1 1 0 50.0%
Grünfeld Defense: Counterthrust Variation 2 1 1 0 50.0%
QGA: 4.e3 e6 5.Bxc4 1 1 0 0 100.0%
Czech Defense 1 1 0 0 100.0%
Sicilian Defense: Dragon Variation 1 1 0 0 100.0%
Sicilian Defense: Closed 1 1 0 0 100.0%
Bullet Opening Games Wins Losses Draws Win Rate
Sicilian Defense 125 66 56 3 52.8%
Australian Defense 105 53 46 6 50.5%
Amar Gambit 64 43 21 0 67.2%
QGD: 2...Bf5 3.cxd5 62 44 15 3 71.0%
Sicilian Defense: Alapin Variation 59 27 32 0 45.8%
QGA: 3.e3 c5 59 34 23 2 57.6%
Bird Opening: Dutch Variation, Batavo Gambit 50 30 18 2 60.0%
Amazon Attack: Siberian Attack 46 16 30 0 34.8%
Sicilian Defense: Closed 44 29 15 0 65.9%
King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation 40 18 22 0 45.0%

🔥 Streaks

Streak Longest Current
Winning 25 0
Losing 16 3
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