Thi Thu Hien Pham (aka Biacoca)
Title: Woman FIDE Master (WFM)
Peak Ratings: Blitz 2633 (Feb 2025), Bullet 2430 (Oct 2021), Rapid 1976 (Jun 2018)
Biography
Thi Thu Hien Pham, known in the chess world as Biacoca, is a formidable Woman FIDE Master with a penchant for blitz battles that could make grandmasters sweat. With a peak blitz rating soaring to an impressive 2633, Biacoca is not just your average player but a tactical maestro who thrives in the fast-paced chaos of online arenas.
Starting strong back in 2017 with a blitz rating around 2100, she steadily climbed the ladder of speed chess dominance, managing to break into the 2500+ rating territory by 2019 and continuing her rise up to 2633. While her bullet and rapid ratings are notably lower, this only underlines her explosive strength in blitz — where seconds count and nerves tremble.
Biacoca's style is marked by resilience and endurance: an exceptional comeback rate of 88% when facing adversity, combined with a low early resignation rate of less than 1%, shows she's not one to quit easily. The psychological tilt factor is impressively low too, meaning even under pressure, calmness reigns.
Playing Style & Performance
- Endgame Wizard: She engages in endgames very often (88% frequency), showing deep strategic understanding.
- White Pieces: Has a slight edge with a 51.17% win rate.
- Opening Repertoire: Loves the mysterious “Top Secret” openings in blitz — results range around 48% win rate across 5,000+ games — which makes her the kind of player whose opponents probably think, “What did I just walk into?”
- Strongest in Blitz and Bullet: With over 5,000 blitz games and more than 2,200 bullet games under her belt, Biacoca definitely prefers to resolve battles with lightning speed.
Notable Stats & Quirks
Her longest winning streak is a slick 13 games, proving that once she gets on a roll, stopping her is like trying to catch a greased bishop! Conversely, her longest losing streak is a modest 10 games — even the best have off days.
Fun fact: she’s at her sharpest playing around 7 PM, which is presumably when her brain switches to queen mode.
Recent Games
In one recent victory (May 2025), playing White in the Vienna Game's Max Lange Paulsen Variation, Biacoca masterfully forced her opponent to resign after a positional squeeze — all in under 41 moves. On the flip side, losses like the one against QuesoDeJalisco in the French Defense Exchange Variation remind us that even WFM Biacoca is human (however unwilling!).
In essence, Thi Thu Hien Pham is a chess force to be reckoned with — a speed demon with nerves of steel, and a secretive opening repertoire no one quite deciphers. A champion who plays as fast as she thinks and thinks faster than you blink.
Hi Thi Thu Hien Pham!
You are playing sharp, creative chess and holding your own against 2400-plus opposition—great job. Below are three focus areas that will help you convert even more of those close 3-minute games.
1. Time management – your single biggest rating gain
- You lost on time in two of the last five games even though the final positions were defensible. Aim to reach move 25 with ≥ 1:30 still on the clock.
- Practical tip: make every non-forcing decision in ≤ 3 seconds. Reserve your “think tank” for one or two critical positions per game.
- Drill: play a daily set of three bullet games (1+1) focusing only on moving instantly in winning positions; this will retrain your time-nerves for blitz.
- Progress tracker: (higher win-rate in sessions where average remaining time ≥ 20 s).
2. Pawn-storm discipline – keep your king safer
You often launch g-/h-pawn storms (e.g., 17.g4 in the French Exchange and 21.g4 in the Pirc) while your own king is still on the back rank. Strong opponents punished the resulting dark-square holes.
- Apply two-move prophylaxis (Prophylaxis) before pushing flank pawns: “If I play g4, what two moves does my opponent get?”
- Study model games: Carlsen – Topalov 2012 (restrained pawn play led to long-term pressure).
- Practical drill: play thematic positions vs engine with half-point handicaps—win without advancing the g-/h-pawns.
3. Rook-ending conversion – lock the ½-½ or 1-0
In your loss to QuesoDeJalisco the critical moment came right after 31…Ke6. You allowed …Rb4 …Kf5 and the activity snowballed.
- Principle reminder: in equal rook endings, activity > material. When you are the side up a pawn, avoid allowing the defender’s rook to reach your second rank.
- Drill: set up the diagram after 31…Ke6 and beat Stockfish at depth 4 until you score 8/10.
What you are already doing well
- Excellent opening variety—Vienna Game as White and both Pirc & O’Kelly Sicilian as Black keep your opponents guessing.
- Strong tactical alertness: the
28.Ne5+shot in your win vs Nenad Purić is model calculation under 40 seconds. - Endgame stamina: converting the pawn ending vs GMVladimir_Petkov showed precise counting.
Next-month action plan
- Daily 10-minute tactic set (1200 – 2400 motif range).
- Two 15-minute sessions on Chessable’s “100 Endgame Patterns” (sections on rook activity).
- One 3-game blitz set where you forbid yourself from thinking longer than 5 s before move 15.
Keep up the great work! With sharper clock handling and a little more king safety discipline, a new personal best is right around the corner.
Current peak blitz rating: 2633 (2025-02-11). Let’s push it 50 points higher this season!
— Your Chess Coach
Games analysed: 28-May wins and losses, plus recent streak data ().
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| azskill | 0W / 1L / 0D | |
| franzzchess | 0W / 1L / 0D | |
| remcospr | 0W / 1L / 0D | |
| spotbet | 0W / 4L / 0D | |
| iamsidman | 0W / 1L / 0D | |
| andreymartianov | 0W / 1L / 0D | |
| themurkin | 1W / 1L / 0D | |
| myfourpawnattack | 0W / 1L / 0D | |
| alanpsc | 0W / 1L / 0D | |
| teahceryp | 1W / 0L / 0D | |
| Most Played Opponents | ||
|---|---|---|
| winakay2225 | 266W / 94L / 22D | |
| classact01 | 12W / 14L / 2D | |
| grandemas | 9W / 14L / 1D | |
| Sanjeev Mishra | 8W / 9L / 3D | |
| biacola | 15W / 1L / 3D | |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2178 | 2408 | ||
| 2024 | 2243 | 2439 | 1611 | |
| 2023 | 2264 | 2473 | 1526 | |
| 2022 | 2213 | 2497 | 1594 | |
| 2021 | 2371 | 2478 | 1205 | |
| 2020 | 2308 | 2355 | 1205 | |
| 2019 | 2316 | 2528 | 1150 | |
| 2018 | 2222 | 2218 | 1801 | |
| 2017 | 2320 | 2126 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 441W / 426L / 87D | 397W / 485L / 70D | 95.6 |
| 2024 | 92W / 82L / 20D | 77W / 100L / 22D | 98.6 |
| 2023 | 42W / 35L / 6D | 36W / 41L / 4D | 95.1 |
| 2022 | 85W / 55L / 17D | 75W / 74L / 8D | 90.0 |
| 2021 | 408W / 341L / 73D | 356W / 381L / 55D | 90.1 |
| 2020 | 174W / 133L / 29D | 145W / 174L / 18D | 92.4 |
| 2019 | 452W / 300L / 56D | 421W / 309L / 58D | 90.1 |
| 2018 | 209W / 162L / 18D | 190W / 191L / 13D | 87.6 |
| 2017 | 169W / 138L / 22D | 180W / 135L / 18D | 85.4 |
Openings: Most Played
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense: O'Kelly Variation | 487 | 237 | 206 | 44 | 48.7% |
| Czech Defense | 303 | 147 | 133 | 23 | 48.5% |
| Caro-Kann Defense | 207 | 80 | 105 | 22 | 38.6% |
| Sicilian Defense: Closed | 201 | 87 | 102 | 12 | 43.3% |
| Sicilian Defense: Alapin Variation | 197 | 87 | 95 | 15 | 44.2% |
| Amazon Attack: Siberian Attack | 159 | 65 | 79 | 15 | 40.9% |
| Sicilian Defense | 156 | 70 | 75 | 11 | 44.9% |
| Dresden Opening: The Goblin | 151 | 77 | 59 | 15 | 51.0% |
| Scandinavian Defense | 137 | 66 | 59 | 12 | 48.2% |
| Döry Defense | 108 | 62 | 34 | 12 | 57.4% |
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense: O'Kelly Variation | 172 | 95 | 69 | 8 | 55.2% |
| Scandinavian Defense | 78 | 50 | 26 | 2 | 64.1% |
| Döry Defense | 77 | 38 | 35 | 4 | 49.4% |
| Caro-Kann Defense: Exchange Variation | 69 | 40 | 28 | 1 | 58.0% |
| Dresden Opening: The Goblin | 67 | 42 | 23 | 2 | 62.7% |
| Czech Defense | 66 | 32 | 28 | 6 | 48.5% |
| French Defense: Exchange Variation | 64 | 42 | 19 | 3 | 65.6% |
| Sicilian Defense: Closed | 64 | 30 | 31 | 3 | 46.9% |
| Colle System: Rhamphorhynchus Variation | 64 | 35 | 27 | 2 | 54.7% |
| Caro-Kann Defense | 60 | 26 | 32 | 2 | 43.3% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense: O'Kelly Variation | 2 | 2 | 0 | 0 | 100.0% |
| Dutch Defense: Classical Variation | 2 | 1 | 1 | 0 | 50.0% |
| London System: Poisoned Pawn Variation | 2 | 1 | 1 | 0 | 50.0% |
| Dutch Defense | 1 | 0 | 1 | 0 | 0.0% |
| Scandinavian Defense | 1 | 0 | 1 | 0 | 0.0% |
| Australian Defense | 1 | 0 | 1 | 0 | 0.0% |
| Sicilian Defense: Najdorf Variation | 1 | 1 | 0 | 0 | 100.0% |
| Döry Defense | 1 | 1 | 0 | 0 | 100.0% |
| Rapport-Jobava System | 1 | 1 | 0 | 0 | 100.0% |
| English Opening: Anglo-Indian Defense | 1 | 0 | 1 | 0 | 0.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 13 | 0 |
| Losing | 10 | 6 |