Avatar of Guillaume Cassabois

Guillaume Cassabois

Username: QuantumKnight

Location: Montpellier

Playing Since: 2012-09-03 (Inactive)

Wow Factor: ♟

Chess.com

Rapid: 1785
29W / 19L / 2D
Blitz: 1401
5900W / 4956L / 331D
Bullet: 1011
5W / 15L / 1D

Player Profile: Quantumknight

Quantumknight is a dedicated online chess enthusiast who has played over 10,000 rated Blitz games alone, carving out a name as a resilient and ambitious competitor. Their journey began in 2012, steadily building skill and momentum across multiple time controls.

Ratings and Notable Achievements

  • Highest Blitz Rating: 1722 (achieved in 2022)
  • Highest Bullet Rating: 1480 (achieved in 2022)
  • Highest Rapid Rating: 1785 (achieved in 2023)
  • Longest Winning Streak: 14 consecutive victories

Across the years, Quantumknight’s Blitz ratings have ranged from the 1500s up to their eventual peak in the low 1700s. Notably, their Rapid play reached a new personal best in 2023, marking significant growth in their faster-paced matches as well. While they often surpass 1600 in Blitz, they have also shown potential to handle high-pressure Bullet games.

Win-Loss Record

In Blitz, they have amassed over ten thousand encounters, securing more than 53% of those as wins (5392 victories). In Rapid, though fewer games have been played, Quantumknight has maintained competitive form, while in Bullet, they are still sharpening their ultra-fast play.

Opening Preferences

Quantumknight exhibits a rich and varied opening repertoire. They have a particular fondness for the King’s Gambit, deployed over 300 times, reflecting an aggressive style. The Ruy Lopez and Italian Game also feature prominently among their most-played systems. From classical main lines to ambitious gambits, they frequently steer the game into adventurous territory.

Playing Style and Strengths

With an endgame frequency of over 75%, Quantumknight routinely guides the position into deeper phases, averaging about 66 moves in winning efforts. They rarely throw in the towel prematurely, exhibiting a low early resignation rate of just 1.7%. Their comeback rate stands at an impressive 83.6%, showcasing tenacity under pressure.

Quantumknight’s attacking mindset pairs well with a willingness to test complicated positions. They boast a 100% win rate in situations where they regain an advantage after losing material—an indicator of iron resolve. While they occasionally experience tilt (with a factor of 11), they stand out for strong mental fortitude over the board.

Final Thoughts

Whether dueling in Blitz, pushing every second in Bullet, or methodically outmaneuvering foes in Rapid, Quantumknight constantly displays ambition and grit. Sharpening a dynamic opening selection and aiming for deep endgames, they continue to evolve, adding to their record of impressive comebacks and personal best ratings.


🆚 Opponent Insights

Most Played Opponents
dhimitraqc 6W / 15L / 2D View Games
sakojan 6W / 7L / 1D View Games
nsoulopoulos 12W / 1L / 0D View Games
ioakeim memtsas 5W / 7L / 0D View Games
ltom258 9W / 3L / 0D View Games

Rating

Year Bullet Blitz Rapid Daily
2025 1401
2024 1481
2023 1011 1488 1785
2022 1053 1491 1698
2021 1546
2020 1609
2019 1528
2018 1577
2017 1581
2016 1630
2015 1473
2014 1516
2013 1473 1564
2012 1543
Rating by Year2012201320142015201620172018201920202021202220232024202517851011YearRatingBulletBlitzRapid

Stats by Year

Year White Black Moves
2025 474W / 418L / 13D 440W / 454L / 15D 68.1
2024 170W / 149L / 15D 175W / 144L / 12D 69.0
2023 205W / 138L / 17D 170W / 177L / 17D 71.7
2022 245W / 203L / 12D 225W / 222L / 14D 71.7
2021 223W / 160L / 11D 186W / 186L / 17D 74.2
2020 232W / 176L / 18D 216W / 169L / 25D 75.2
2019 81W / 51L / 0D 65W / 69L / 3D 67.6
2018 197W / 164L / 13D 181W / 175L / 15D 74.3
2017 241W / 197L / 14D 225W / 202L / 20D 74.5
2016 187W / 123L / 5D 171W / 136L / 8D 70.7
2015 167W / 116L / 9D 134W / 140L / 11D 77.5
2014 296W / 241L / 12D 272W / 267L / 14D 69.8
2013 277W / 187L / 9D 273W / 196L / 8D 71.2
2012 113W / 62L / 2D 104W / 70L / 5D 73.8

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
Italian Game: Two Knights Defense 621 344 255 22 55.4%
Australian Defense 515 295 208 12 57.3%
Scotch Game 466 228 225 13 48.9%
QGD: 3.Nc3 Bb4 410 237 164 9 57.8%
QGA: 3.e3 c5 359 210 145 4 58.5%
KGD: Classical, 3.Bc4 338 164 160 14 48.5%
Slav Defense 296 157 125 14 53.0%
Semi-Slav Defense: Accelerated Meran Variation 280 144 126 10 51.4%
QGD: 4.Nf3 277 133 138 6 48.0%
Four Knights Game 276 158 109 9 57.2%
Bullet Opening Games Wins Losses Draws Win Rate
Ruy Lopez: Berlin Defense 3 1 2 0 33.3%
Sicilian Defense 2 1 1 0 50.0%
Scandinavian Defense 2 1 1 0 50.0%
Amar Gambit 1 0 0 1 0.0%
Slav Defense 1 0 1 0 0.0%
QGD: 3.Nc3 Bb4 1 0 1 0 0.0%
Nimzo-Indian Defense: Rubinstein System 1 0 1 0 0.0%
Petrov's Defense 1 1 0 0 100.0%
Four Knights Game 1 0 1 0 0.0%
Caro-Kann Defense 1 0 1 0 0.0%
Rapid Opening Games Wins Losses Draws Win Rate
Italian Game: Two Knights Defense 4 2 2 0 50.0%
QGD: Chigorin, 3.cxd5 3 1 1 1 33.3%
QGD: 3.Nc3 Bb4 3 2 1 0 66.7%
English Opening: Agincourt Defense 3 3 0 0 100.0%
Amazon Attack 2 2 0 0 100.0%
Gruenfeld: 5.e3 O-O 2 0 2 0 0.0%
Ruy Lopez: Bird's Defense Deferred 2 0 2 0 0.0%
King's Indian Defense: Larsen Variation 2 0 2 0 0.0%
Slav Defense: Alekhine Variation 2 2 0 0 100.0%
Slav Defense 2 2 0 0 100.0%

🔥 Streaks

Streak Longest Current
Winning 14 0
Losing 11 3
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