Alfredo Asaf Rivera Pérez - aka Dinosaurioyogurt
Born to confound chessboards and confuse opponents, Alfredo Asaf Rivera Pérez is no ordinary player. Rising through the ranks with the ferocity of a dinosaur enjoying a spoonful of yogurt, Alfredo's bullet and blitz ratings tell the tale of a speed demon who practically lives on the edge of madness and brilliance.
Rating Journey
Since 2022, Alfredo's bullet rating has rocketed from a solid 2132 to an eye-popping 2810 by 2025—clearly proving that slow and steady doesn't win this race, but rather the blurring of pieces across the board in a frenzy only a true bullet master can muster. His blitz play followed suit, blasting from 1750 up to a stunning 2836.
Playing Style
Alfredo prides himself on dramatic comebacks and fearless tactics. With a 95.41% comeback rate, it's as if he thrives on near-defeat, turning what could be a loss into a triumphant victory—sometimes baffling his opponents and maybe himself. His average games last about 95 moves whether he wins or loses, proving he loves to savor the drama on the board longer than most.
Interestingly, Alfredo has an early resignation rate of 0.43, meaning he’s usually not one to quit easily — unless he really wants to go grab more yogurt.
Psychological Edge
With a tilt factor of 9, Alfredo sometimes battles the notorious frustration beast, but that never deters his fierce spirit. His psychological resilience is best summed up by an impeccable 100% win rate after losing a piece, suggesting Alfredo truly believes in the phrase, "It's not over till the yogurt melts."
Opponent Favorites & Fun Facts
- Most played opponent: Benecyrill (47 games) - win rate ~64%
- Longest winning streak: 11 games straight. Talk about momentum!
- Known for some mysterious "Top Secret" openings, boasting win rates just shy of 44% in bullet and 42% in blitz.
Alfredo usually plays his best moves between 5 am and 11 am, basking in the sunrise’s glow, while at the crack of 9 am his win rate is an astonishing 70%. At night, well, sometimes the yogurt fights back.
In Summary
Alfredo Asaf Rivera Pérez is the lovable chess beast who burns bright on the blitz battlefield, delivers shock and awe through relentless aggression, and keeps his opponents googling "What just happened?!" His chess journey is a delightful mix of raw speed, clever tactics, and a dash of quirky charm—like that unexpected dollop of yogurt on a dino’s claws.
What you did well in recent blitz games
- You stayed active and created pressure in the middlegame when your pieces were coordinated. This helped you seize chances even in tight positions.
- You used flexible opening setups (like the English/London‑System family) to control the center and limit opponent counterplay, which keeps you in the game even when the opponent counterattacks.
- You showed resilience in complex tactical battles, finding ways to complicate and keep chances alive rather than opting for immediate simplifications.
Key patterns to learn from
- Frequent tactical moments came from aiming at king safety and piece activity. Continue practicing calculating forcing sequences (checks, captures with tempo) to decide when to push the advantage or switch plans.
- Endgames showed that simplifying can be risky if you misjudge the pawn structure or rook activity. When material is equal, focus on activating your king and rooks and creating outside passed pawns.
- Time pressure affected several results. Blitz benefits from a quick, repeatable process for each move and a plan for the opening, middlegame, and endgame phases.
Areas to improve
- Time management: Develop a simple plan for allocating time across the game. For example, aim to complete the opening phase comfortably within the first portion of the clock, leaving enough time for the middlegame and endgame. Practice making solid, quick decisions on non-critical moves to conserve time for tricky moments.
- Endgame technique: Strengthen rook endings and king activity in blitz. Learn a few reliable endgame patterns (e.g., how to use outside passed pawns and rook activity to create winning chances).
- Calculation discipline: In crowded middlegames, set a limit for deep calculation per move (such as exploring 2–3 forcing lines) and quickly check for obvious tactical threats your opponent might have prepared.
- Opening consolidation: While your current variety is valuable, consider committing to 1–2 reliable systems you know well. This reduces decision fatigue and helps you reach more playable middlegames under time pressure.
Drills and a practical practice plan
- Daily tactical practice focused on forcing moves (checks, captures with tempo, and deflections) for 15–20 minutes.
- Endgame practice 2–3 times per week, emphasizing rook endings and king activation with practical pawn structures.
- Opening study block once or twice a week: pick 1–2 lines (for example, a London System family approach and a flexible English setup) and map out your standard middlegame plans and common pawn breaks.
- Blitz review habit: after each blitz game, quickly note the moment you felt time pressure, a tactic you missed, and any endgame conversion idea you could have executed better.
Opening focus and recommendations for blitz
You’re already using a variety of solid openings. For blitz, it can help to consolidate to 1–2 systems you know well. The London System family (including Poisoned Pawn ideas) often yields solid development and central control with relatively predictable middlegames. A second flexible option is a well-understood English Opening variant that keeps options open and avoids heavy memorization. For each choice, write down your go-to middlegame plans and typical break ideas so you can move quickly under time pressure.
Next steps and a concise practice plan
- Schedule 3 focused blitz practice blocks this week: two 20-minute tactical sessions and one endgame session, plus one opening-review block.
- Review all losses to identify missed tactical shots and times you spent on non-critical moves.
- Keep brief post-game notes after each blitz game: the moment you felt time pressure, a decision that cost material, and the endgame plan you intended to execute but didn’t.
Progress friendly notes
Progress ideas and quick reminders can help you stay focused between sessions. If you'd like, I can tailor a short, 2-week plan centered on your preferred openings and the exact endgames you encounter most often in blitz. See your profile for a quick link to ongoing practice goals alfredo%20asaf%20rivera%20p%C3%A9rez.
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| onewany | 2W / 4L / 0D | View |
| gracejo | 7W / 7L / 2D | View |
| Noah Thomforde-Toates | 10W / 11L / 2D | View |
| asghar golizadeh | 4W / 0L / 0D | View |
| Claudio Lasama | 4W / 9L / 2D | View |
| Ioannis Georgiadis | 2W / 8L / 0D | View |
| Bartlomiej Heberla | 3W / 0L / 0D | View |
| Kanan Garayev | 3W / 5L / 1D | View |
| fda fadf | 9W / 4L / 5D | View |
| Srihari L R | 3W / 2L / 0D | View |
| Most Played Opponents | ||
|---|---|---|
| PracticeMakesOK | 21W / 25L / 3D | View Games |
| Anselm Wagner | 30W / 13L / 4D | View Games |
| cockroachdolly | 25W / 12L / 2D | View Games |
| kolver | 21W / 9L / 7D | View Games |
| Matías Pérez Gormaz | 13W / 23L / 1D | View Games |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2900 | 2804 | 2008 | |
| 2024 | 2803 | 2804 | ||
| 2023 | 2602 | 2602 | ||
| 2022 | 2601 | 2475 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 957W / 1005L / 221D | 830W / 1188L / 162D | 98.3 |
| 2024 | 506W / 472L / 82D | 411W / 567L / 82D | 96.7 |
| 2023 | 138W / 120L / 27D | 107W / 141L / 29D | 94.8 |
| 2022 | 115W / 70L / 17D | 107W / 82L / 14D | 87.9 |
Openings: Most Played
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| London System: Poisoned Pawn Variation | 938 | 442 | 403 | 93 | 47.1% |
| East Indian Defense | 412 | 176 | 192 | 44 | 42.7% |
| Amazon Attack: Siberian Attack | 391 | 164 | 188 | 39 | 41.9% |
| Döry Defense | 373 | 166 | 163 | 44 | 44.5% |
| Ruy Lopez: Bird's Defense Deferred | 303 | 144 | 144 | 15 | 47.5% |
| Blackburne Shilling Gambit | 173 | 80 | 84 | 9 | 46.2% |
| Australian Defense | 161 | 62 | 87 | 12 | 38.5% |
| English Opening: Agincourt Defense | 143 | 51 | 83 | 9 | 35.7% |
| QGD: 4.Nf3 | 109 | 37 | 65 | 7 | 33.9% |
| Four Knights Game | 102 | 32 | 59 | 11 | 31.4% |
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| London System: Poisoned Pawn Variation | 359 | 154 | 173 | 32 | 42.9% |
| East Indian Defense | 249 | 126 | 104 | 19 | 50.6% |
| Amazon Attack: Siberian Attack | 234 | 115 | 105 | 14 | 49.1% |
| Döry Defense | 187 | 91 | 83 | 13 | 48.7% |
| Australian Defense | 152 | 68 | 74 | 10 | 44.7% |
| Hungarian Opening: Wiedenhagen-Beta Gambit | 93 | 36 | 49 | 8 | 38.7% |
| Slav Defense | 80 | 42 | 29 | 9 | 52.5% |
| Amazon Attack | 76 | 26 | 45 | 5 | 34.2% |
| Ruy Lopez: Bird's Defense Deferred | 71 | 29 | 38 | 4 | 40.9% |
| Nimzo-Larsen Attack: Classical Variation | 57 | 27 | 27 | 3 | 47.4% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| QGD: 6.Nf3 | 1 | 1 | 0 | 0 | 100.0% |
| Italian Game: Classical Variation, Ghulam-Kassim Variation | 1 | 1 | 0 | 0 | 100.0% |
| Amar Gambit | 1 | 1 | 0 | 0 | 100.0% |
| Barnes Opening: Walkerling | 1 | 1 | 0 | 0 | 100.0% |
| Nimzo-Larsen Attack | 1 | 1 | 0 | 0 | 100.0% |
| Barnes Defense | 1 | 1 | 0 | 0 | 100.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 12 | 3 |
| Losing | 13 | 0 |