Sergio German (Jbd735) - National Master Extraordinaire
Meet Sergio German, a National Master whose chessboard wizardry is as consistent as his taste for complex openings! Sergio, known in the realm of 64 squares as Jbd735, holds the prestigious title of National Master—no small feat for a player whose tactical awareness is sharper than the pointy end of a bishop.
Since 2017, Sergio has blasted through blitz, bullet, rapid, and daily games with a style that blends fierce aggression and cunning strategy. His Bullet peak rating soared to a staggering 2547 in early 2024, while his Blitz escapades reached a career-best 2588 just last year. Whether it’s the frantic pace of Bullet or the thoughtful marches of Daily chess, Sergio’s win rates proudly hover around the 65–75% mark — enough to keep any opponent sweating!
Strategically, Sergio has a penchant for classical defenses peppered with a modern twist: the Scandinavian Defense Closed and Caro-Kann Exchange Variation lead his opening repertoire with a sublime win rate north of 75%. He’s a fan of endgames too, with nearly 80% endgame frequency, indicating his love for grinding victories in the late phases—no quick resignations here, thanks!
His psychological resilience is legendary. With a comeback rate over 78%, Sergio doesn’t just bounce back—he bounces forward, turning losing scraps into shiny wins more often than not. Also, his tilt factor is impressively low at 9, proving that even when the clock ticks down, his cool remains unshaken.
If you’re wondering about his peak performances, he often shines brightest during the morning hours, especially around 09:00 AM, and enjoys a notable advantage playing with White (nearly 67% win rate) and Black (63%). When it comes to winning streaks, Sergio once held a jaw-dropping 47 games in a row—talk about unstoppable momentum!
In his recent matches, Sergio recently secured a triumphant checkmate victory employing the Queens Gambit Declined Semi-Slav Defense (ECO D31). True to form, his tactical sharpness and endgame prowess dictated the tempo of the battle until victory was sealed.
Chess may be a game of kings, but Sergio German is the king of grind and finesse—sometimes fierce, often brilliant, and always entertaining. Opponents beware: Jbd735’s knight is coming for you!
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| Kaspar Kappeler | 0W / 1L / 0D | View |
| Most Played Opponents | ||
|---|---|---|
| leoch63 | 39W / 7L / 0D | View Games |
| cosmicshrine | 32W / 11L / 0D | View Games |
| ctperl | 25W / 14L / 0D | View Games |
| theonlybleedblack | 22W / 10L / 6D | View Games |
| ljubljana_hi | 23W / 12L / 2D | View Games |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2404 | |||
| 2024 | 2439 | 2454 | ||
| 2023 | 2529 | 2208 | ||
| 2022 | 2547 | 2440 | ||
| 2021 | 2445 | 2409 | 2361 | |
| 2020 | 2501 | 2473 | 2085 | 2387 |
| 2019 | 2214 | 2463 | 1957 | 2479 |
| 2018 | 2128 | 2488 | 2014 | 2417 |
| 2017 | 2226 | 2282 | 1890 | 2204 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 0W / 1L / 0D | 0W / 0L / 0D | 82.0 |
| 2024 | 182W / 162L / 12D | 148W / 187L / 21D | 75.8 |
| 2023 | 9W / 3L / 5D | 10W / 5L / 2D | 79.8 |
| 2022 | 324W / 83L / 9D | 288W / 108L / 16D | 74.2 |
| 2021 | 1595W / 395L / 72D | 1504W / 463L / 88D | 74.1 |
| 2020 | 1061W / 406L / 75D | 996W / 449L / 74D | 74.6 |
| 2019 | 917W / 450L / 64D | 878W / 479L / 51D | 74.4 |
| 2018 | 724W / 427L / 43D | 706W / 461L / 51D | 70.6 |
| 2017 | 1004W / 604L / 58D | 924W / 651L / 71D | 71.2 |
Openings: Most Played
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Scandinavian Defense Closed | 575 | 433 | 123 | 19 | 75.3% |
| Caro Kann Defense | 537 | 398 | 115 | 24 | 74.1% |
| Queens Pawn Opening | 430 | 274 | 139 | 17 | 63.7% |
| Modern Defense with | 274 | 167 | 96 | 11 | 61.0% |
| Caro Kann Defense Exchange Variation | 272 | 210 | 53 | 9 | 77.2% |
| Pirc Defense | 213 | 153 | 56 | 4 | 71.8% |
| English Opening Caro Kann Defensive System | 213 | 135 | 72 | 6 | 63.4% |
| London System | 199 | 124 | 65 | 10 | 62.3% |
| Caro Kann Defense Main Line | 194 | 144 | 44 | 6 | 74.2% |
| Nimzowitsch Larsen Attack Classical Variation | 192 | 132 | 56 | 4 | 68.8% |
| Daily Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Kings Indian Defense Normal Variation | 23 | 20 | 1 | 2 | 87.0% |
| Undefined | 15 | 15 | 0 | 0 | 100.0% |
| Semi Slav Defense Main Line Stoltz Variation | 14 | 13 | 1 | 0 | 92.9% |
| Sicilian Defense Taimanov Bastrikov Variation | 11 | 8 | 2 | 1 | 72.7% |
| Ruy Lopez Opening Morphy Defense Keres Chigorin Defense | 10 | 6 | 2 | 2 | 60.0% |
| Indian Game | 10 | 8 | 1 | 1 | 80.0% |
| Alapin Sicilian Defense | 9 | 8 | 0 | 1 | 88.9% |
| Semi Slav Defense Main Line Semi Meran Variation | 8 | 6 | 0 | 2 | 75.0% |
| Sicilian Defense Open Najdorf Variation | 8 | 7 | 0 | 1 | 87.5% |
| Ruy Lopez Opening Morphy Defense Anti Marshall Variation | 8 | 7 | 0 | 1 | 87.5% |
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Top Secret | 45 | 30 | 14 | 1 | 66.7% |
| Ruy Lopez Opening Morphy Defense Keres Chigorin Defense | 40 | 30 | 9 | 1 | 75.0% |
| English Opening Caro Kann Defensive System | 40 | 22 | 11 | 7 | 55.0% |
| Giuoco Piano Game | 33 | 18 | 12 | 3 | 54.5% |
| London System | 28 | 13 | 12 | 3 | 46.4% |
| Sicilian Defense Open Najdorf Variation | 26 | 17 | 7 | 2 | 65.4% |
| Ruy Lopez Opening Morphy Defense Anderssen Variation | 26 | 14 | 10 | 2 | 53.9% |
| Ruy Lopez Opening Morphy Defense Exchange Gligoric Variation | 24 | 14 | 8 | 2 | 58.3% |
| Scotch Game Classical Intermezzo Variation | 21 | 15 | 4 | 2 | 71.4% |
| Sicilian Defense Kan Modern Variation | 21 | 10 | 9 | 2 | 47.6% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Top Secret | 39 | 23 | 15 | 1 | 59.0% |
| Kings Indian Defense Normal Variation | 3 | 2 | 1 | 0 | 66.7% |
| Sicilian Defense Kan Modern Variation | 2 | 2 | 0 | 0 | 100.0% |
| Slav Defense Modern Line | 2 | 0 | 1 | 1 | 0.0% |
| Queens Gambit Declined Semi Slav Defense Accelerated Move Order | 2 | 2 | 0 | 0 | 100.0% |
| Semi Slav Defense Anti Meran Anti Moscow Gambit | 2 | 2 | 0 | 0 | 100.0% |
| Queens Gambit Declined Ragozin Defense | 2 | 1 | 1 | 0 | 50.0% |
| Queens Pawn Opening Pseudo Catalan Variation | 2 | 2 | 0 | 0 | 100.0% |
| Bogo Indian Defense Vitolins Variation | 1 | 1 | 0 | 0 | 100.0% |
| Benko Gambit Fully Accepted Fianchetto Attack | 1 | 1 | 0 | 0 | 100.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 47 | 0 |
| Losing | 9 | 2 |