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!
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 |
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% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense: Closed | 82 | 60 | 16 | 6 | 73.2% |
| London System: Poisoned Pawn Variation | 36 | 26 | 4 | 6 | 72.2% |
| Sicilian Defense: Alapin Variation, Sherzer Variation | 29 | 16 | 6 | 7 | 55.2% |
| Italian Game: Two Knights Defense | 28 | 22 | 5 | 1 | 78.6% |
| Slav Defense | 28 | 19 | 4 | 5 | 67.9% |
| Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | 22 | 19 | 1 | 2 | 86.4% |
| Amazon Attack | 19 | 13 | 2 | 4 | 68.4% |
| Sicilian Defense: Taimanov Variation, Bastrikov Variation | 17 | 15 | 1 | 1 | 88.2% |
| Döry Defense | 16 | 10 | 5 | 1 | 62.5% |
| Sicilian Defense: Alapin Variation | 15 | 9 | 4 | 2 | 60.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 32 | 2 |
| Losing | 20 | 0 |