Ekaterini Pavlidou - Woman International Master (a.k.a. diamonds13)
Ekaterini Pavlidou, known online and over-the-board as diamonds13, is a formidable Woman International Master (WIM) who strikes fear into the hearts of her opponents — and occasionally herself, as every player faces those heartbreakingly sneaky blunders. With a peak blitz rating soaring above 2500 in 2025, she is no stranger to rapid-fire battles where not only brains but blisters matter!
Since 2019, Ekaterini has been showcasing a fearless and competitive style, often favoring sharp openings like the Nimzo-Indian Samisch Variation and the Sicilian Defense in her blitz repertoire. Her tactical awareness is impressive: she boasts a comeback rate over 90% — meaning if the game heats up or she loses a piece, don’t count her out; she’s often the phoenix rising from the ashes on the 64 squares.
Ekaterini’s playing schedule reveals a curious pattern — mornings and early evenings are her power zones, with a win rate peak around 6-7 AM and 7 PM. It seems while many people hit snooze, diamonds13 wakes up ready to castle and conquer. She averages around 73 moves per win, which means she’s not rushing toward victory but carefully knitting a winning tapestry one calculated move at a time.
Her endgames are her playground — over 82% of her games see her diving deep into those strategic finales, where many matches are won or lost. But don’t be fooled; she also has a soft spot for sharp blitz openings and games that end on time victories or, sometimes, dramatic resignations. If you ever play her, be ready: she combines deep understanding with lightning-fast instincts, and a dash of psychological warfare — her tilt factor at 19 is a reminder that even titans occasionally have off days.
Beyond numbers, Ekaterini’s record against a wide array of opponents shows both resilience and flexibility. She has memorable rivalries and a positive score against many, yet humble enough to learn from losses (because losing is just a sneaky way to win next time). Her nickname on the battlefield is diamonds13 — and like a diamond, her brilliance only grows under pressure.
Fun Fact:
In a recent blitz clash in 2025, Ekaterini won by outlasting her opponent on the clock after squeezing out every last drop of advantage — proving that sometimes, it’s not just about the moves, but managing the ticking enemy as well!
Coach's Feedback for Ekaterini Pavlidou
Hi Ekaterini, I've reviewed your recent games and have some insights that can help you improve your chess skills and performance:
Strengths
- Opening Knowledge: You show a solid understanding of classical openings like the Nimzo-Indian, Sicilian, and Benoni Defense. Your move choices in the opening phase generally follow sound theoretical principles, setting a strong foundation for the middlegame.
- Positional Play: You demonstrate good positional awareness, especially when handling pawn structures and piece placement, such as controlling key central squares and timely exchanges.
- Endgame Technique: You've managed to convert winning positions effectively in several blitz games, indicating good technique when time pressure increases.
- Active Piece Play: Developing your pieces actively and creating threats in the middlegame stood out in your wins.
Areas for Improvement
- Time Management: A number of wins were achieved on the opponent’s time rather than a clean technical finish. In some losses, you were under severe time pressure which led to mistakes. Working on pacing yourself throughout the game will reduce rushed moves and tactical oversights especially in the critical middlegame and endgame phases.
- Tactical Awareness: Though your overall positional understanding is good, a sharper focus on spotting tactics and calculating forcing lines could prevent sudden losses and missed winning chances. Regular tactical puzzles and reviewing your games for missed tactics will be beneficial.
- Handling Complex Positions: Some losses occurred in complicated middlegame positions where optimal defense was crucial. Strengthening your defensive technique and learning to simplify when ahead can increase your score against strong opponents.
- Opening Variety and Surprise: While your opening repertoire is sound, incorporating less common lines or surprise weapons could give you an edge over similarly rated players who prepare against main lines.
Specific Suggestions
- Review key positions from your recent wins and losses, focusing on moments where the game turned. Try to understand alternatives that might have improved your position.
- Practice blitz games with a goal to keep at least 30 seconds on the clock after 20 moves, balancing speed and accuracy.
- Train tactical exercises daily for at least 10-15 minutes to increase calculation speed and pattern recognition.
- Analyze your losses, especially from your recent games against samqr33 and Daniel Yang, and note recurring themes or mistakes.
- Consider deepening your understanding of structures arising from the Nimzo-Indian and Benoni defenses, as these feature prominently in your games.
Keep up the great effort – consistent study and practice will surely help you climb even higher!
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| doublexclam | 0W / 1L / 0D | |
| Dmitry Andreikin | 0W / 2L / 0D | |
| ingoscarardila | 2W / 2L / 0D | |
| isurualahakoon | 2W / 2L / 0D | |
| magste2007 | 1W / 0L / 0D | |
| metsfan2000yt | 1W / 1L / 0D | |
| willsidney | 0W / 0L / 1D | |
| lyushin9494 | 0W / 1L / 1D | |
| chessfeels | 1W / 0L / 0D | |
| krishfire2 | 1W / 0L / 0D | |
| Most Played Opponents | ||
|---|---|---|
| zoublitz | 26W / 1L / 1D | |
| hakuna_matata10 | 5W / 19L / 1D | |
| fallen_mazaj | 7W / 13L / 0D | |
| treymasta2020 | 14W / 6L / 0D | |
| Nejmeddine Dhaouadi | 6W / 8L / 1D | |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2312 | 2434 | 2264 | |
| 2024 | 2081 | 2416 | 2264 | |
| 2023 | 2319 | |||
| 2022 | 2245 | 2416 | 2264 | |
| 2021 | 2247 | 2329 | 2207 | |
| 2020 | 2232 | 2365 | 2359 | |
| 2019 | 2274 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 253W / 268L / 29D | 203W / 314L / 33D | 78.3 |
| 2024 | 158W / 201L / 21D | 163W / 213L / 19D | 78.7 |
| 2023 | 77W / 94L / 13D | 67W / 112L / 7D | 81.1 |
| 2022 | 99W / 81L / 13D | 88W / 97L / 13D | 78.6 |
| 2021 | 191W / 183L / 21D | 169W / 212L / 25D | 76.1 |
| 2020 | 281W / 274L / 25D | 259W / 280L / 26D | 77.0 |
| 2019 | 77W / 38L / 1D | 71W / 48L / 2D | 72.6 |
Openings: Most Played
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense: Taimanov Variation, American Attack | 200 | 85 | 106 | 9 | 42.5% |
| Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line | 144 | 62 | 74 | 8 | 43.1% |
| King's Indian Defense: Accelerated Averbakh Variation | 138 | 74 | 54 | 10 | 53.6% |
| Sicilian Defense: Closed | 127 | 51 | 69 | 7 | 40.2% |
| Australian Defense | 125 | 65 | 55 | 5 | 52.0% |
| QGD: 3.Nc3 Nf6 4.e3 | 107 | 43 | 59 | 5 | 40.2% |
| Sicilian Defense | 103 | 41 | 55 | 7 | 39.8% |
| Sicilian Defense: Alapin Variation | 99 | 40 | 55 | 4 | 40.4% |
| Amazon Attack: Siberian Attack | 94 | 45 | 40 | 9 | 47.9% |
| Sicilian Defense: Accelerated Dragon | 85 | 31 | 50 | 4 | 36.5% |
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Australian Defense | 33 | 18 | 14 | 1 | 54.5% |
| Benoni Defense: Benoni Gambit Accepted | 30 | 13 | 15 | 2 | 43.3% |
| Scandinavian Defense | 25 | 10 | 12 | 3 | 40.0% |
| Sicilian Defense: Closed | 22 | 13 | 8 | 1 | 59.1% |
| Colle System: Rhamphorhynchus Variation | 18 | 5 | 13 | 0 | 27.8% |
| Amar Gambit | 17 | 8 | 9 | 0 | 47.1% |
| Slav Defense: Bonet Gambit | 16 | 10 | 6 | 0 | 62.5% |
| King's Indian Defense: Accelerated Averbakh Variation | 13 | 8 | 5 | 0 | 61.5% |
| Modern Defense | 10 | 6 | 2 | 2 | 60.0% |
| English Opening: Symmetrical Variation | 10 | 2 | 8 | 0 | 20.0% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Sicilian Defense: Accelerated Dragon | 5 | 3 | 2 | 0 | 60.0% |
| London System: Poisoned Pawn Variation | 4 | 3 | 0 | 1 | 75.0% |
| Dutch Defense | 3 | 2 | 0 | 1 | 66.7% |
| Unknown | 3 | 0 | 0 | 3 | 0.0% |
| QGD: 2...Bf5 3.cxd5 | 2 | 2 | 0 | 0 | 100.0% |
| English Opening: Symmetrical Variation | 2 | 1 | 1 | 0 | 50.0% |
| English Opening | 2 | 2 | 0 | 0 | 100.0% |
| Modern Defense: Pterodactyl Variation | 2 | 2 | 0 | 0 | 100.0% |
| Australian Defense | 2 | 1 | 1 | 0 | 50.0% |
| Diemer-Duhm Gambit (DDG): 4...f5 | 2 | 2 | 0 | 0 | 100.0% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 17 | 1 |
| Losing | 19 | 0 |