Avatar of Kaustuv Kundu

Kaustuv Kundu IM

Username: shadow_master99

Location: Kolkata

Playing Since: 2020-03-23 (Active)

Wow Factor: ♟♟♟♟♟

Chess.com

Rapid: 2407
8W / 1L / 0D
Blitz: 2587
251W / 94L / 42D
Bullet: 2620
345W / 308L / 36D

Kaustuv Kundu - The International Master with a Killer Instinct

Known online as shadow_master99, Kaustuv Kundu proudly wears the title of International Master, earned through sheer tactical brilliance and unwavering dedication. A formidable force on the chessboard, Kaustuv combines strategic depth with a dash of unpredictability, making opponents constantly second-guess their next move.

Career Highlights & Style

Kaustuv reached a peak blitz rating of 2743 back in July 2020 — a level where even grandmasters start to sweat. His bullet rating climbed up to a striking 2647 in April 2025, proving that speed and precision are among his greatest weapons. And let’s not forget his rapid peak of 2512, showcasing his versatility across all time controls.

Playing style? Expect both patience and fire. With an average of over 77 moves per win in his games, he thrives in long, grueling battles, but those who watch closely know he’s got a nearly unstoppable comeback rate of 83% when the chips are down. If a piece is lost, don’t count him out—Kaustuv's win rate after losing a piece is a solid 55%. Resigning early is rare for him, only about 2% of the time; he fights to the bitter end.

The Openings Mystery

His preferred opening in blitz? The enigmatic and humorously named "Top Secret" which yields him a solid 65% win rate over more than 400 games. When he isn't revealing trade secrets, he dabbles in the Reti Opening and the English Opening, showing he’s not just a one-trick magician but a grandmaster of disguise.

Opponent Dynamics

Kaustuv’s rivalry record reads like an epic saga. Some opponents like manmish2, kevingeorgemicheal, and albayo have never tasted victory against him. But like any great chess story, there are nemeses too—players such as manitodeplomo and yurovskykh_oleksandr currently have his number with zero wins against them.

Psychological Edge & Timing

Morning bird? Night owl? Kaustuv shines brightest early in the day, with his best time to play being exactly 6:00 AM — when most of us can barely find our car keys! His tilt factor is modest at 8, meaning he can handle pressure like a champ without throwing pieces around in frustration... most of the time.

Recent Memorable Clash

One of his latest victories was a beautiful blitz game showcasing surgical precision against carokannlover213. In this Reti Opening with Pirc Invitation variation, Kaustuv orchestrated a masterful queen and rook attack leading to a winning position before opponent ran out of time. You can admire the final position here.

In Summary

Kaustuv Kundu's chess journey is that of a relentless fighter armed with a calm mind, deep knowledge, and a flair for dramatic comebacks. Whether blitz, bullet, or rapid, opponents beware: shadow_master99 lurks quietly, ready to pounce with his “Top Secret” moves and tactical surprises.

In the world of 64 squares, Kaustuv is no mere player—he's a dazzling strategist who plays with both heart and humor!


Coach's Avatar

Positives and Strengths

Kaustuv, your recent blitz games demonstrate several strong points that provide a solid foundation for further improvement:

  • Opening Preparation: You have a very solid and effective opening repertoire, especially with your English Opening systems where your win rates are excellent. Notably, your performance with the Caro-Kann Defensive System and various Sicilian Defense lines are remarkable with win rates around 88-90%.
  • Aggressive Play and Initiative: Your games show a good tendency to seize the initiative early, especially evident in sharp lines like the Sicilian Dragon Yugoslav Attack and related Sicilian variations.
  • Endgame Technique: You exhibit good resourcefulness in complex endgame situations, converting your advantages efficiently as seen in your longer games.
  • Overall Record: Your extensive winning record (271 wins against 101 losses) shows consistency and resilience in blitz format.
  • Recent Progress: Your recent 3- and 6-month rating increases of over 100 points reflect substantial improvement and learning.

Areas for Improvement

To further enhance your play and rating progression, focus on the following areas:

  • Time Management: Some wins were secured when opponents ran out of time. Try to balance quick decision-making with accurate calculation to avoid losing on time yourself, as seen in a recent loss on time despite an equal or better position.
  • Handling Pressure in Complex Middlegames: Several losses involved sharp, tactical middlegame scenarios where the opponent capitalized on minor inaccuracies or weaknesses. Improving calculation depth and board vision here can help reduce losses.
  • Closing Out Drawn or Slightly Losing Positions: Your draws and losses sometimes come from missed opportunities to simplify into a winning endgame or hold a balanced position. Practicing defensive techniques and endgame theory can help.
  • Opening Variety and Flexibility: While your core openings are strong, diversifying to handle unusual responses or varying your move order can increase your chances against well-prepared opponents.
  • Focus on Mid to Long Blitz Games: Your results indicate strong performance especially in shorter blits; working on stamina and focus for longer blitz games can help maintain your opening advantage through the endgame.

Suggestions for Next Steps

  • Review your losses to understand tactical slips in critical moments. Consistent tactical training will sharpen your ability to calculate quickly and accurately under time pressure.
  • Use training tools to improve your time management skills, practicing making quality moves within limited time.
  • Study endgame patterns relevant to your openings, so you can confidently transition to winning endgames.
  • Consider experimenting occasionally with different but related opening lines to keep opponents guessing and deepen your understanding.
  • Keep tracking your rating trends and focus on maintaining steady improvement; your recent slope gains indicate an upward trajectory over the past 12 months.

Additional Resources

Continue to analyze your games with a coach or using chess software, concentrating on:

  • Understanding key moments in your games where a different plan or move could have helped;
  • Learning from strong players who use your main openings;
  • Practicing tactics daily even at a blitz pace to boost precision under time constraints.


🆚 Opponent Insights

Recent Opponents
allexo 3W / 1L / 0D
Volodymyr Yaniuk 1W / 0L / 0D
BabyyGroot 1W / 1L / 0D
Caio Victor Brandts Buys 1W / 0L / 0D
Daan Brandenburg 1W / 0L / 0D
ivano12 1W / 0L / 0D
Tushar Anand 1W / 0L / 0D
ghulyan777 1W / 1L / 0D
laminaaprod 0W / 1L / 0D
il89stg-qrs 1W / 0L / 0D
Most Played Opponents
Never_walk_alone 10W / 13L / 2D
renzogm 12W / 10L / 1D
roaring_lion23 12W / 5L / 3D
ali shahibzadegan 10W / 7L / 0D
Daniel Dominguez 4W / 13L / 0D

Rating

Year Bullet Blitz Rapid Daily
2025 2625 2587 2059
2024 2602 2485 2059
2023 2613 2432 2059
2022 2594 2466 2059
2021 2513 2557 2512
2020 2225 2529 1377
Rating by Year20202021202220232024202526251377YearRatingBulletBlitzRapid

Stats by Year

Year White Black Moves
2025 41W / 36L / 2D 41W / 33L / 7D 77.1
2024 23W / 8L / 1D 17W / 11L / 5D 75.9
2023 3W / 2L / 2D 7W / 0L / 1D 72.8
2022 172W / 119L / 20D 157W / 146L / 22D 78.2
2021 50W / 16L / 10D 51W / 20L / 7D 75.6
2020 60W / 20L / 6D 60W / 30L / 6D 68.5

Openings: Most Played

🔥 Streaks

Streak Longest Current
Winning 10 1
Losing 8 0