Avatar of Yichen Han

Yichen Han IM

Username: ProfessorChess101

Playing Since: 2020-09-04 (Active)

Wow Factor: ♟♟♟♟♟♟

Chess.com

Rapid: 2570
569W / 130L / 113D
Blitz: 2915
1507W / 1191L / 264D
Bullet: 3001
3928W / 2943L / 441D

Yichen Han (aka ProfessorChess101)

International Master Extraordinaire

Meet Yichen Han, a grand tactician of the 64 squares who proudly dons the title of International Master granted by FIDE. With a penchant for blitz and bullet, ProfessorChess101 (because even grandmasters need a cool alias) has turned the chess battlefield into their playground.

Yichen’s journey through the ranks is nothing short of a rollercoaster — hitting a blazing peak blitz rating of 2947 in January 2025 and an electrifying bullet apex of 3051 in mid-2021. Their rapid rating soars to a respectable 2579, proving that Yichen is equally comfortable in thoughtful duels and lightning-fast skirmishes.

Their playing style? Oh, it’s a unique cocktail: a low early resignation rate (3.3%) that says “I’m in for the long haul,” with an impressive love for the endgame (73% of games run the distance). Average winning games span around 70 moves, meaning you better bring your stamina — and your popcorn.

Yichen thrives in the comeback department, boasting a stunning 83% comeback rate from sticky situations, and holds steady with a solid 53% win rate even after losing a piece. So yes, if you think you caught them off guard, buckle up — the IM has tricks left in the Pandora’s box.

Rivals beware: Yichen dominates notable opponents, with win rates hitting 100% against many and a respectable 62% versus a top sparring buddy, “ludogorec.” With a longest winning streak of 32 games and a tactical mindset that blends patience with sharp strikes, Yichen redefines resilience.

Preferred Openings

  • Blitz Top Secret Opening (Win Rate: 52.8%) – The mysterious favorite that leaves enemies guessing and scrambling.
  • Slav Defense Exchange Variation – Perfectly executed with a flawless win record (100%) in blitz games, proving Yichen can rock the classic lines.
  • Queens Pawn Opening – Levitsky Attack – A tactical favorite from the recent matches, seen in their latest victories.

Noteworthy Recent Games

ProfessorChess101 recently dazzled the board with a precision victory over Vinchero777, winning by resignation after an intense 45-move battle full of gritty positional play and a spectacular endgame push. Not content with one triumph, another recent gem saw Yichen checkmating DiamantDelfin with a neat and clean finish, showcasing both strategy and flair.

Fun Facts

  • Time of day? Apparently 2 AM is Yichen’s “Best Time of Day to Play,” proving that sleepless dedication and chess brilliance go hand in hand.
  • Studies show Yichen’s win rate peaks at dawn (around 2 AM), and even 6 AM isn’t too shabby, suggesting a nocturnal grandmaster in full force.
  • Despite the high-pressure gameplay, Yichen’s psychological tilt factor is managed well at 20, showing a zen-like calm (or maybe just super-human resilience).

In summary, Yichen Han is a multidimensional force on the chessboard: a tactical ninja, an endgame gladiator, and a strategic wizard with endurance and a dash of mystery. Next time you face ProfessorChess101, don’t just hope for a win — hope you survive the game and learn something astounding!


Coach Chesswick's Profile Photo
Coach Chesswick

Recent Game Highlights

Yichen, your recent rapid games show several strengths that contribute to your solid performance:

  • Strong Opening Knowledge: You consistently play sound openings like the English Opening, Kings Indian Attack, and various Sicilian Defense lines with good understanding and purpose.
  • Effective Positional Play: In your wins, you demonstrate excellent control of central squares, good piece coordination, and well-timed pawn breaks that open lines for attack.
  • Good Endgame Technique: Your ability to convert material or positional advantage into a win is apparent, as seen in clean finishes and delivering checkmate effectively.
  • Time Management: You manage your clock well, maintaining enough time for critical moments while applying pressure on your opponent.

Areas to Improve

Focusing on these aspects can help you increase your consistency and win rate further:

  • Mistakes in Complex Tactical Situations: Some losses involve tactical oversights or allowing counter threats. Training tactics regularly will help sharpen your calculation under pressure.
  • Handling the Nimzowitsch-Larsen Attack: You faced challenges with this opening recently. Reviewing key ideas and plans against it could improve your results.
  • Defensive Resourcefulness: In a few games, better defense and avoiding passive positions could reduce losses. Studying defensive techniques and active counterplay ideas is recommended.
  • Transitions Between Opening and Middlegame: While openings are strong, sometimes middlegame plans can be improved with clearer strategic goals and better evaluation of opponent threats.

Performance Insight and Trends

Your current overall strength-adjusted win rate is approximately 50%, which is solid but shows room to grow against similarly rated opponents. Your rating has increased by 28 points in the last month and by 76 points over six months, indicating a positive upward trajectory.

The trend slopes for your ratings show a healthy pace of improvement, particularly in the short to mid term, highlighting your ongoing development and learning curve.

  • Maintain Consistency: Continue building on your opening and endgame mastery since those are key contributors to your wins.
  • Focus on Tactical Sharpness: Incorporate daily or frequent tactics training to reduce losses from oversights.
  • Analyze Losses Deeply: Reviewing your defeats carefully will provide insights into pattern mistakes and recurring weaknesses.

Opening Performance

Your best results come from openings where you have strong familiarity and sound theory applied. Notably high win rates in:

  • Sicilian Defense: Closed – Almost 74% win rate, showing great comfort and understanding of the setup.
  • Italian Game: Two Knights Defense – Over 75% wins, indicating good tactical and strategic preparation.
  • Modern Defense – Over 80% win rate, reflecting solid handling of dynamic, less common positions.

Continue to deepen your knowledge in these favorite lines, while experimenting and learning the plans behind less familiar openings.

Summary and Recommendations

You are progressing impressively with a consistent upward rating trend and solid win record. To continue this growth:

  • Strengthen your weakest opening responses, like the Nimzowitsch-Larsen Attack, by studying key plans and move orders.
  • Invest time in tactical drills aimed at rapid pattern recognition and calculation accuracy to avoid losses from simple errors.
  • Keep analyzing your games, especially losses, not just to find what went wrong but to develop practical plans for similar positions in the future.
  • Consider reviewing classical endgame manuals or videos to refine your technique in converting advantages under pressure.

Your disciplined approach and solid foundational skills position you well to continue climbing the rating ladder. Keep up the hard work and enjoy the journey!



🆚 Opponent Insights

Recent Opponents
Robert Fontaine 2W / 0L / 0D View
Štefan Mazúr 1W / 0L / 0D View
johnnashjr1 0W / 1L / 0D View
Sean Senft 27W / 9L / 0D View
Rudi Olenik Campa 6W / 5L / 1D View
pureintuition01 0W / 2L / 0D View
panabong 2W / 0L / 0D View
Petros Trimitzios 5W / 7L / 1D View
Jude Shearsby 2W / 3L / 1D View
Aswath S 1W / 1L / 1D View
Most Played Opponents
ludogorec 266W / 122L / 40D View Games
Snowflake 215W / 143L / 29D View Games
Elie Milikow 166W / 104L / 20D View Games
Aaravamudhan Balaji 76W / 61L / 10D View Games
Vaibhav Raut 27W / 86L / 4D View Games

Rating

Year Bullet Blitz Rapid Daily
2025 2867 2740 2570
2024 2859 2921 2570
2023 2193 2601 2494
2022 2994 2625 2527
2021 3038 2753 2527
2020 2587 2485 2403
Rating by Year20202021202220232024202530382193YearRatingBulletBlitzRapid

Stats by Year

Year White Black Moves
2025 702W / 439L / 94D 638W / 513L / 82D 79.8
2024 387W / 210L / 43D 365W / 229L / 40D 71.1
2023 127W / 114L / 21D 118W / 117L / 28D 80.0
2022 54W / 22L / 8D 36W / 39L / 4D 86.3
2021 1568W / 1050L / 211D 1531W / 1127L / 178D 76.2
2020 668W / 359L / 87D 636W / 413L / 85D 80.4

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
Unknown 260 180 80 0 69.2%
Modern 235 112 106 17 47.7%
Amazon Attack 159 84 56 19 52.8%
Australian Defense 117 64 42 11 54.7%
Sicilian Defense: Closed 112 60 43 9 53.6%
Amazon Attack: Siberian Attack 98 54 33 11 55.1%
Caro-Kann Defense 92 44 39 9 47.8%
Amar Gambit 83 42 30 11 50.6%
Barnes Defense 71 43 25 3 60.6%
London System: Poisoned Pawn Variation 67 35 24 8 52.2%
Bullet Opening Games Wins Losses Draws Win Rate
Colle System: Rhamphorhynchus Variation 907 491 365 51 54.1%
Amar Gambit 862 522 304 36 60.6%
Scandinavian Defense 584 343 209 32 58.7%
Australian Defense 546 320 205 21 58.6%
Nimzo-Larsen Attack 358 201 135 22 56.1%
Modern 325 172 133 20 52.9%
Amazon Attack 291 154 126 11 52.9%
Caro-Kann Defense 273 151 109 13 55.3%
London System: Poisoned Pawn Variation 244 141 89 14 57.8%
Benoni Defense: Benoni Gambit Accepted 214 99 97 18 46.3%

🔥 Streaks

Streak Longest Current
Winning 32 2
Losing 20 0
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