Sergey And. Korshunov - FIDE Master
Also known in the chess world as Chessmatenokk17, Sergey And. Korshunov is a FIDE Master whose chess journey reads like a thrilling marathon of checkmates, tactical wizardry, and relentless pursuit of the 64 squares' glory.
Since bursting onto the scene, Sergey has showcased prodigious talent across all time controls: blitz, bullet, rapid, and daily chess. With peak ratings of 2894 in blitz, 2807 in bullet, and a sharp 2580 in rapid, this player dances expertly through the chaos of quick games while maintaining formidable strength in longer battles.
Sergey’s style is a mix of deep strategic insight and unexpectedly brash tactical strikes — a concoction that often leaves opponents scratching their heads and their kings on thin ice. On average, his wins last around 81 moves, proving that patience is indeed a virtue, but don’t be fooled; with a comeback rate exceeding 88%, he’s also a master of shaking off setbacks and turning tables with an almost cinematic flair.
Career Highlights & Style
- A tenure marked by highs and lows, including a monster 22-game winning streak and some lessons learned in tough moments.
- Preferred opening mysteries: Sergey keeps opponents guessing with his "Top Secret" repertoire, racking up thousands of games played and a win rate above 50% in bullet and nearly 60% in rapid.
- Psychologically, Sergey is a resilient competitor with a balanced tilt factor and a surprisingly sharp eye for late-night tactics — his best time to play is around 1 AM. Night owls, rejoice!
Most Memorable Recent Battles
One of Sergey’s finest recent performances was a white-piece masterpiece in the Caro-Kann Advanced Variation where he forced a resignation after relentless pressure and precise calculation, proving that no defense can withstand the might of a well-prepared FIDE Master.
Not every game is a fairy tale though — like every great artist, Sergey has faced defeats against strong opponents, such as a recent tough game where he valiantly fought but fell to an opponent’s strategic edge. Even the best occasionally stumble, adding fuel to the fire for the next epic showdown.
Fun Fact
While Sergey’s username Chessmatenokk17 may sound like a secret code, it perfectly matches his gameplay: unpredictable, sharp, and always ready to “checkmate” your expectations.
With thousands of online battles fought, Sergey is truly a gladiator of the chessboard, combining obsession, skill, and a pinch of humor to show that chess is as much about resilience as it is about raw talent.
Whether it's battling it out in seconds or strategizing over days, Sergey And. Korshunov is a name that chess fans will continue to watch closely — for those moments when strategy meets brilliance on the battlefield of kings and pawns.
Overall Performance Review
Sergey, you've shown very solid progress recently with a good winning ratio and consistent improvement in your rating. Your current strength adjusted win rate is approximately 58.5%, which reflects your ability to capitalize on opportunities against opponents of varying levels. Notably, your rating has increased by 18 points in the last month and an impressive 137 points over the last six months. Your upward trend, indicated by a positive slope of 26.6 for the 1 and 12 month periods, shows you have been steadily improving. Maintaining this growth mindset will serve you well.
Strengths in Your Games
- Opening Choices: You have a 100% win rate in diverse openings such as the Scotch Game, Sicilian Defense variants, Nimzo-Larsen Attack, Ruy Lopez, and others. This suggests good preparation and understanding of your opening repertoire.
- Consistent Tactical Play: In your reviewed wins, you demonstrated effective piece coordination and strong tactical awareness, particularly when you launched attacks or defended precisely under pressure.
- Endgame Handling: Your games often reach complex endgames where you show resilience and strategic decision-making that converts slight advantages into wins.
- Adaptability: Whether playing as White or Black, you adapt your plans dynamically, which allows you to respond effectively to different styles and unforeseen situations in your matches.
Areas for Improvement
- Conversion in Complex Positions: Some losses and draws indicate moments where maintaining initiative or simplifying the position earlier could have turned the tables. Focusing on recognizing critical moments will help increase your edge.
- Endgame Precision: While your endgame is solid, working on deeper knowledge around key endgame concepts and calculation under pressure can help avoid missed opportunities, especially in rook and minor piece endings.
- Managing Counterplay: In a few games, such as the Scandinavian Defense match, your opponent generated effective counterplay. Developing a stronger sense for neutralizing opponent threats early will be beneficial.
- Time Management: Although your games are daily and allow ample reflection, practicing decision-making speed with puzzles or blitz games could help sharpen intuition and improve in-the-moment calculations.
Suggested Focus Areas and Resources
- Opening Study: Continue deepening your current opening knowledge and try exploring variations within your favored systems like the Scotch Game and the Sicilian Defense, improving both theory and practical understanding.
- Endgame Training: Dedicate regular practice to rook and minor piece endgames, especially focusing on common themes such as opposition, triangulation, and basic mating patterns.
- Tactical Exercises: Incorporate puzzles and pattern recognition drills into your daily routine to enhance your calculation speed and accuracy.
- Game Analysis: Review your lost and drawn games to identify critical turning points. Analyze with engines and annotate to fully understand mistakes and alternative moves.
Keep up your strong work ethic and continue this steady improvement. Each game is a valuable opportunity to learn and grow.
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| viktorskliarov | 1W / 0L / 0D | |
| Anthony Wirig | 6W / 8L / 1D | |
| dixit_nikhil | 1W / 0L / 0D | |
| Fabiano Caruana | 1W / 2L / 0D | |
| Kushagra Mohan | 6W / 2L / 0D | |
| Kamil Plichta | 1W / 2L / 0D | |
| Peter Roberson | 1W / 0L / 0D | |
| Caleb Levi | 0W / 1L / 0D | |
| vfvgbhn | 1W / 3L / 1D | |
| Vugar Rasulov | 0W / 1L / 0D | |
| Most Played Opponents | ||
|---|---|---|
| gubajdullin | 17W / 105L / 3D | |
| Roman Zhenetl | 25W / 19L / 8D | |
| PracticeMakesOK | 22W / 18L / 6D | |
| Vlad Lymar | 18W / 17L / 3D | |
| Dmitry Tatarinov | 12W / 17L / 4D | |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2809 | 2914 | 2651 | |
| 2024 | 2734 | 2861 | 2349 | |
| 2023 | 2607 | 2668 | ||
| 2022 | 2332 | 2403 | 2175 | |
| 2021 | 2221 | 2392 | 2281 | 1783 |
| 2020 | 2119 | 2327 | 2233 | 1646 |
| 2019 | 1818 | 2019 | 1767 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 723W / 638L / 156D | 687W / 675L / 156D | 94.3 |
| 2024 | 1076W / 978L / 192D | 1029W / 985L / 230D | 91.3 |
| 2023 | 140W / 108L / 19D | 147W / 99L / 23D | 89.4 |
| 2022 | 61W / 54L / 13D | 65W / 53L / 11D | 82.1 |
| 2021 | 280W / 197L / 48D | 234W / 235L / 40D | 80.7 |
| 2020 | 253W / 251L / 42D | 281W / 246L / 32D | 73.8 |
| 2019 | 446W / 406L / 40D | 467W / 400L / 41D | 66.3 |
Openings: Most Played
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Colle System: Rhamphorhynchus Variation | 111 | 58 | 47 | 6 | 52.2% |
| Modern | 100 | 51 | 44 | 5 | 51.0% |
| Amar Gambit | 67 | 40 | 23 | 4 | 59.7% |
| Australian Defense | 65 | 38 | 23 | 4 | 58.5% |
| Nimzo-Larsen Attack | 54 | 30 | 23 | 1 | 55.6% |
| King's Indian Attack | 46 | 22 | 22 | 2 | 47.8% |
| Scandinavian Defense | 40 | 18 | 20 | 2 | 45.0% |
| Döry Defense | 39 | 20 | 16 | 3 | 51.3% |
| Hungarian Opening: Wiedenhagen-Beta Gambit | 38 | 20 | 15 | 3 | 52.6% |
| Ruy Lopez | 37 | 21 | 16 | 0 | 56.8% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Scotch Game | 23 | 16 | 7 | 0 | 69.6% |
| Ruy Lopez | 16 | 8 | 5 | 3 | 50.0% |
| Modern | 14 | 8 | 6 | 0 | 57.1% |
| Amazon Attack: Siberian Attack | 10 | 8 | 1 | 1 | 80.0% |
| English Opening: Agincourt Defense | 10 | 8 | 1 | 1 | 80.0% |
| Blackburne Shilling Gambit | 9 | 1 | 8 | 0 | 11.1% |
| London System: Poisoned Pawn Variation | 9 | 7 | 0 | 2 | 77.8% |
| Amar Gambit | 8 | 5 | 2 | 1 | 62.5% |
| Barnes Defense | 7 | 3 | 3 | 1 | 42.9% |
| Italian Game: Two Knights Defense | 7 | 5 | 2 | 0 | 71.4% |
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Caro-Kann Defense | 384 | 192 | 164 | 28 | 50.0% |
| Ruy Lopez | 356 | 169 | 154 | 33 | 47.5% |
| Döry Defense | 338 | 146 | 158 | 34 | 43.2% |
| Sicilian Defense: O'Kelly Variation | 294 | 132 | 127 | 35 | 44.9% |
| French Defense: Advance Variation | 273 | 137 | 124 | 12 | 50.2% |
| Scotch Game | 243 | 120 | 108 | 15 | 49.4% |
| Amazon Attack: Siberian Attack | 242 | 126 | 98 | 18 | 52.1% |
| Sicilian Defense: Najdorf Variation | 217 | 98 | 102 | 17 | 45.2% |
| Modern | 216 | 98 | 100 | 18 | 45.4% |
| Blackburne Shilling Gambit | 196 | 84 | 102 | 10 | 42.9% |
| Daily Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Scotch Game | 2 | 2 | 0 | 0 | 100.0% |
| Sicilian Defense: Chekhover Variation | 1 | 1 | 0 | 0 | 100.0% |
| Colle System: Rhamphorhynchus Variation | 1 | 1 | 0 | 0 | 100.0% |
| Modern | 1 | 1 | 0 | 0 | 100.0% |
| Nimzo-Larsen Attack | 1 | 1 | 0 | 0 | 100.0% |
| Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line | 1 | 1 | 0 | 0 | 100.0% |
| Caro-Kann Defense: Karpov Variation | 1 | 1 | 0 | 0 | 100.0% |
| Bishop's Opening | 1 | 1 | 0 | 0 | 100.0% |
| Sicilian Defense | 1 | 1 | 0 | 0 | 100.0% |
| Ruy Lopez | 1 | 1 | 0 | 0 | 100.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 22 | 0 |
| Losing | 12 | 3 |