Avatar of Sebastian Donoso Diaz

Sebastian Donoso Diaz FM

Username: el-reptiliano

Playing Since: 2017-07-21 (Inactive)

Wow Factor: ♟♟

Chess.com

Rapid: 2226
4W / 3L / 1D
Blitz: 2202
823W / 605L / 94D
Bullet: 2447
187W / 146L / 13D

Sebastian Donoso Diaz - The FIDE Master with a Reptilian Flair

Meet Sebastian Donoso Diaz, a chess force who strolls through the 64 squares with the stealth and cunning of his online moniker, el-reptiliano. Awarded the prestigious title of FIDE Master, Sebastian has steadily climbed the ranks, proving that brains and a pinch of reptilian patience make a formidable combo.

Rating Rollercoaster: From Rapid Fire to Bullet Blitz

Sebastian's chess journey is like a well-fought battle — sometimes swift, sometimes a marathon. His Rapid rating peaked at a sharp 2282 in 2020, with a solid hold at 2226 afterwards.
When the clock ticks faster, Sebastian doesn’t shy away. His Blitz rating famously touched 2397 in 2019, while Bullet play showcased his lightning reflexes, reaching a blistering 2318 in 2020. Whether he’s sipping coffee during a Rapid or sweating bullets in Bullet chess, Sebastian’s prowess shines through.

Victory and Survival: A Record to Boast About

With a cumulative record boasting over 1,000 wins across Blitz, Rapid, and Bullet formats, Sebastian’s chess battles are epic. Notably, his longest winning streak was an impressive 12 games — a feat that either involves excellent strategy or some serious opponent bewilderment.
His games are a mix of thrilling wins and a few losses sprinkled for humility. The comeback king, Sebastian has an 87.54% success rate in bouncing back after being behind in a match — talk about resilience!

A Mysterious Opening Repertoire

Ever the enigmatic player, Sebastian’s favorite opening is shrouded in secrecy — labeled as "Top Secret." This mysterious strategy yields a striking 64% win rate in Rapid games and over 54% in both Blitz and Bullet. Clearly, keeping opponents guessing is part of the master plan.

Playing Style: Patience Meets Persistence

Sebastian’s style is far from hasty — his games often stretch beyond 70 moves on average, showcasing deep thought and dogged determination. His endgame frequency of over 80% suggests a player who loves to grind it out rather than rush to quick victories.
Though early resignations happen less than 1% of the time, the occasional tilt (rated at a modest 9 on the tilt scale) reminds us even masters can frown at a surprise knight fork.

Psychology & Preferences

Playing mostly during the early afternoon to night hours, Sebastian peaks around noon to early afternoon with win rates hovering near or above 60%. Interestingly, he prefers the white pieces, with a White win rate close to 58%.
Online opponents beware: when Sebastian loses a piece, count on a 100% win rate for the turnaround. Losing a pawn? Not in his kingdom.

Opponent Highlights

Sebastian’s record versus familiar foes is a patchwork of triumph and challenge — utterly dominant against some (100% win rates aplenty) and left scratching his head against others (looking at you, cuentapaltorneo and some zero-win opponents). It’s all in the game (and the revenge matches underway).

In sum, Sebastian Donoso Diaz is a player whose dedication, tactical sharpness, and perhaps a little reptilian coolness make him a fascinating figure on the chessboard. Whether fighting rapid duels or blitz skirmishes, he’s the kind of opponent you want on your team — or at least on your watchlist.


Coach Chesswick's Profile Photo
Coach Chesswick

Feedback for Sebastian Donoso Diaz

Sebastian, reviewing your recent games shows promising tactical awareness and aggressive play, especially when you manage to launch direct attacks on the opponent's king. Your sharp moves like sacrifices in openings demonstrate a fighting spirit and a good understanding of attacking motifs.

Strengths

  • Opening Ambition: You often choose active and challenging openings, such as the Bowdler Attack and other aggressive lines. This approach helps you create imbalance and winning chances early on.
  • Tactical Awareness: Your commitment to forcing moves and sacrifices shows an ability to spot tactical opportunities. Moves like Bxf7+ and decisive follow-ups contributed directly to your victories.
  • King Safety and Checkmating Patterns: You displayed excellent knowledge of mating nets and finishing tactics, closing out games efficiently once you gained an advantage.

Areas to Improve

  • Positional Understanding: Occasionally, your games reveal that maintaining or improving your position strategically could help minimize risks. Building pressure slowly and consolidating advantages will reduce chances of counterattacks.
  • Endgame Technique: In some losses, endgame simplification or accurate calculation was missing. Practicing fundamental endgames could increase your confidence converting even small advantages.
  • Time Management: A few games showed signs of time trouble affecting the quality of your decisions. Ensuring consistent clock management will help maintain strong play throughout.

Recommendations

  • Analyze critical moments of your last losses to identify where you could have improved decisions, especially in the middlegame transitions.
  • Study classic games featuring similar attacking openings to deepen your strategic plans while attacking.
  • Practice basic and intermediate endgames regularly to enhance your overall game finishing skills.
  • Play slow time controls occasionally to practice thoughtful planning without clock pressure.

Keep up the great work! Your eagerness to play aggressively and seize opportunities is impressive — building on it with steady positional and endgame skills will bring your play to the next level.



🆚 Opponent Insights

Most Played Opponents
Fedor_Afanasiev 12W / 17L / 2D View Games
Josef Obšivač 10W / 10L / 1D View Games
Vladimir Danilov 7W / 6L / 1D View Games
allexo 6W / 7L / 0D View Games
Edgardo J. Almedina Ortiz 5W / 6L / 1D View Games

Rating

Year Bullet Blitz Rapid Daily
2021 2202 2226
2020 2297 2269 2226
2019 2263 2317
2018 1988 2143
Rating by Year201820192020202123171988YearRatingBulletBlitzRapid

Stats by Year

Year White Black Moves
2021 4W / 1L / 1D 4W / 2L / 1D 73.2
2020 106W / 80L / 14D 92W / 89L / 15D 80.5
2019 378W / 228L / 33D 324W / 269L / 41D 80.1
2018 55W / 42L / 2D 56W / 43L / 2D 75.7

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
King's Indian Defense: Larsen Variation 97 55 39 3 56.7%
English Opening: Agincourt Defense 71 40 26 5 56.3%
QGA: 3.e3 c5 63 34 22 7 54.0%
Amar Gambit 63 36 22 5 57.1%
QGA: 4.e3 a6 57 32 20 5 56.1%
English Opening: Caro-Kann Defensive System 52 25 24 3 48.1%
Sicilian Defense: Alapin Variation, Sherzer Variation 51 28 21 2 54.9%
Amazon Attack: Siberian Attack 40 21 14 5 52.5%
Sicilian Defense: Alapin Variation 36 24 12 0 66.7%
English Opening: Symmetrical Variation, Four Knights Variation 31 21 8 2 67.7%
Bullet Opening Games Wins Losses Draws Win Rate
Amar Gambit 65 35 26 4 53.9%
Colle System: Rhamphorhynchus Variation 22 10 12 0 45.5%
Barnes Defense 11 8 1 2 72.7%
Australian Defense 11 9 2 0 81.8%
English Opening: Agincourt Defense 10 7 3 0 70.0%
QGA: 3.e3 c5 9 5 4 0 55.6%
Sicilian Defense: Alapin Variation, Sherzer Variation 9 7 2 0 77.8%
Sicilian Defense: Closed 9 6 3 0 66.7%
Bird Opening: Dutch Variation, Batavo Gambit 8 5 2 1 62.5%
King's Indian Defense: Larsen Variation 7 7 0 0 100.0%

🔥 Streaks

Streak Longest Current
Winning 12 0
Losing 9 0
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