Avatar of Bjorn Ivar Karlsson

Bjorn Ivar Karlsson FM

Username: bivark

Location: Reykjavík

Playing Since: 2009-12-16 (Inactive)

Wow Factor: ♟♟

Chess.com

Daily: 1895
18W / 0L / 1D
Rapid: 2222
8W / 5L / 3D
Blitz: 2558
1175W / 833L / 156D
Bullet: 2454
175W / 109L / 13D

Bjorn Ivar Karlsson (bivark) - The Fierce FIDE Master

Bjorn Ivar Karlsson, famously known in the chess realm as bivark, is no ordinary player - they are a proud FIDE Master, wielding the title like a knight brandishes a sword! With a reputation for relentless blitz battles and a knack for clutch endgames, Bjorn has delighted and confounded opponents across the globe.

Rating Peaks & Style

Peaking at an impressive 2710 in Blitz (October 2020) and showcasing strong performances in Bullet and Rapid formats, Bjorn blends tactical brilliance with an impressive stamina, often stretching games beyond 70 moves. Their games frequently end under their control, evidenced by a humble 0.41% one-sided loss rate - talk about resilience!

Playing Schedule & Psychology

Night owls take note: Bjorn’s best moves are made around 10 PM, where their win rate soars to over 65%. Though their Tilt Factor clocks a moderate 7 (the agony of defeat is real), Bjorn's comeback rate is a staggering 88.69%, proving that giving up is simply not in their vocabulary.

Record & Reputation

With over 2000 blitz wins, Bjorn has battled a who’s who of online opponents — many succumbing to the storm of precision and patience. Known for a solid opening repertoire that remains top secret, Bjorn’s win rate hovers above 54% in blitz and an almost mystical 90% in daily games, where patience truly pays off.

Notable Games

One of Bjorn’s most recent victories (Dec 2024) was a dynamic duel in the Slav Defense, where bivark skillfully wrestled control from their opponent before securing a win on time. Another memorable triumph featured a precision checkmate, reaffirming their tactical prowess.

In Conclusion

Bjorn Ivar Karlsson is a chess gladiator, blending intellect, a dash of humor, and unyielding determination. Whether blitzing through pawns or patiently outmaneuvering foes in daily games, Bjorn embodies the spirit of the game—always ready to push forward, one move at a time.


Coach's Avatar

Performance Snapshot

Your current form is very solid, sitting close to 2710 (2020-10-28). The graphs below can help you visualise when you play your best chess:

0123456891011121314151617181920212223100%0%Hour of Day

MonTueWedThuFriSatSun100%0%Day of Week

Key Strengths

  • Tactical awareness. Your win against Hugo Wernberg shows a keen eye for loose pieces and an ability to convert material quickly once the position opens.
  • Dynamic piece play. You rarely shy away from active choices (e.g. …Nxe4 in your Queen’s-Gambit-Declined games) and often seize the initiative.
  • Opening variety. The mix of Slav, QGD, Larsen/Réti and Scandinavian keeps opponents guessing and indicates good overall opening culture.

Growth Areas

  1. King safety in sharp openings. In the loss to Димитрий Король (Dragon-Fianchetto) and to darkknightza (Scandinavian) your king wandered into the centre early. Review the typical pawn breaks and safe king routes in these systems.
  2. Conversion in winning endgames. Two recent time-outs (vs Same_Old_Jets and ojarke) happened with roughly equal or even favourable material. Practise simple technical endings so you can finish them almost “on autopilot” and save clock time.
  3. Clock management. You often reach move 25 with <15 s. Consider the “20-40-40 rule”: keep ~40 % of your time for the last 40 % of the moves. Playing a few increment games can teach the habit of moving faster in familiar positions.
  4. Prophylactic thinking. Several losses started with optimistic pawn pushes (h4/h5, f5/f4) that weakened squares around your king. Add a quick “what will my opponent do after my move?” check to your routine – classic prophylaxis.

Game-Specific Nuggets

Recent Win – Slav vs Schack-Hugo

You handled the Nd2-b5-a4-a5-a6 space-gaining plan beautifully.
Illustrative fragment:


  • 13.a6! provoked …Bc8 and tied Black’s queenside for the rest of the game.
  • Try adding 18.Qb1 (instead of 21.Qa1) in future games – it keeps the queen more flexible.

Recent Loss – Dragon Fianchetto vs KorolDimitriy75

Critical moment: 19…Rfe8?

  • After 19…e5! the c4-knight plug would have given you the initiative.
  • Remember that in the Fianchetto-Dragon you must challenge the d5-square before White secures it with Nb4-c6 ideas.

Action Plan for the Next Two Weeks

  • Micro-goal: Start every blitz session with five 3-min +2 s games and aim to keep >20 s on your clock by move 30.
  • Opening focus: Review the mainlines of the Dragon Fianchetto (moves 8-15) and the …Qd8 Scandinavian. Play at least 15 training games in each line.
  • Puzzle routine: 15 min/day on defence-oriented puzzles to sharpen board vision when the king is under fire (search for tags: “double-check”, “zwischenzug”, “back-rank”).
  • Endgame drill: Practise K+P vs K and basic rook endings until you can win them in <30 s on a physical board; this will turbo-charge your blitz conversion rate.

Encouragement

You have all the tools to push beyond your current level. Refine your decision-making in critical moments, respect your king’s safety, and watch the rating climb. Enjoy the journey!



🆚 Opponent Insights

Most Played Opponents
dajusy 21W / 0L / 2D
skakmadurinn 19W / 2L / 0D
depill24 1W / 5L / 4D
Símon Þórhallsson 6W / 4L / 0D
Daniel Milekic 4W / 1L / 2D

Rating

Year Bullet Blitz Rapid Daily
2025 2558
2024 2454 2566
2023 2461 2427
2021 2488 2407
2020 2573 2207 2222 1895
2019 2452 2405
2018 2452 2358
2017 2362 2303 2313 1304
2016 1767 2235
Rating by Year20162017201820192020202120232024202525731304YearRatingBulletBlitzRapidDaily

Stats by Year

Year White Black Moves
2025 0W / 1L / 0D 0W / 0L / 0D 102.0
2024 197W / 124L / 30D 164W / 166L / 22D 84.5
2023 29W / 17L / 3D 21W / 21L / 2D 87.1
2021 13W / 10L / 1D 13W / 8L / 2D 83.2
2020 76W / 29L / 9D 72W / 33L / 7D 74.5
2019 20W / 13L / 3D 21W / 11L / 1D 78.6
2018 165W / 108L / 23D 147W / 121L / 24D 85.0
2017 211W / 142L / 26D 201W / 137L / 27D 82.2
2016 28W / 15L / 3D 34W / 8L / 2D 78.6

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
Slav Defense 77 43 30 4 55.8%
Sicilian Defense: Closed 75 45 26 4 60.0%
Slav Defense: Alekhine Variation 65 36 23 6 55.4%
Sicilian Defense: Alapin Variation, Sherzer Variation 64 38 22 4 59.4%
Sicilian Defense: Alapin Variation 59 29 24 6 49.1%
Sicilian Defense: Kan Variation, Knight Variation 59 31 23 5 52.5%
Sicilian Defense: Najdorf Variation 53 29 22 2 54.7%
Caro-Kann Defense 53 32 18 3 60.4%
London System: Poisoned Pawn Variation 50 28 18 4 56.0%
Scandinavian Defense 44 28 12 4 63.6%
Bullet Opening Games Wins Losses Draws Win Rate
Colle System: Rhamphorhynchus Variation 23 14 8 1 60.9%
Hungarian Opening: Wiedenhagen-Beta Gambit 20 11 9 0 55.0%
Scandinavian Defense 18 6 11 1 33.3%
Amar Gambit 17 10 6 1 58.8%
Modern 16 11 4 1 68.8%
Nimzo-Larsen Attack 11 9 2 0 81.8%
King's Indian Attack 10 4 5 1 40.0%
Nimzo-Larsen Attack: Classical Variation 9 7 2 0 77.8%
Caro-Kann Defense 9 7 2 0 77.8%
English Opening: Agincourt Defense 6 3 2 1 50.0%
Daily Opening Games Wins Losses Draws Win Rate
Amazon Attack: Siberian Attack 2 2 0 0 100.0%
English Opening: Four Knights System, Nimzowitsch Variation 1 0 0 1 0.0%
Amazon Attack 1 1 0 0 100.0%
King's Indian Defense: Averbakh Variation, Benoni Defense 1 0 0 1 0.0%
Ruy Lopez 1 1 0 0 100.0%
Nimzo-Indian Defense 1 1 0 0 100.0%
Bishop's Opening: 3.d3 1 1 0 0 100.0%
Scandinavian Defense 1 1 0 0 100.0%
Amar Gambit 1 1 0 0 100.0%
KGA: Scandinavian, 4.exd5 Bd6 1 1 0 0 100.0%

🔥 Streaks

Streak Longest Current
Winning 27 0
Losing 7 2