Prepare against Chang-Jyu Sun
TWN · World #32,834 classical · FIDE ID 16303466
Our database contains 39 games by Chang-Jyu Sun, covering Sep 2020 to Aug 2026. Below you'll find Chang-Jyu Sun's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Chang-Jyu Sun before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,970 | 1,970 | Aug 2026 |
| Rapid | 1,651 | 1,651 | Aug 2026 |
| Blitz | 1,776 | 1,776 | Aug 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 39 | 11 | 12 | 16 | 28.2% |
| As White | 17 | 6 | 4 | 7 | 35.3% |
| As Black | 22 | 5 | 8 | 9 | 22.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Chang-Jyu Sun's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Chang-Jyu Sun's side.
First moves as White (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 17 | 100.0% | 47.1% |
Main lines as White
- 1.e4 — 100% of White games, 47.1% score
- …e5 (35% of these games) — Sun usually continues Nf3 (75.0% score)
- …c5 (35% of these games) — Sun usually continues Nf3 (12.5% score)
- …g6 (12% of these games) — Sun usually continues d4 (25.0% score)
As Black against 1.e4 (10 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 6 | 60.0% | 58.3% |
| e5 | 2 | 20.0% | 0.0% |
| c6 | 2 | 20.0% | 25.0% |
As Black against 1.d4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 4 | 57.1% | 50.0% |
| d5 | 3 | 42.9% | 16.7% |
Chang-Jyu Sun's chess games
All 39 games by Chang-Jyu Sun in the Chess.ceo database (Sep 2020 - Aug 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 11 wins, 12 draws, 16 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B54 | Sicilian | 3 | 0/1/2 | 0.0% |
| B22 | Sicilian: Alapin | 2 | 1/0/1 | 50.0% |
| B06 | Modern Defense | 2 | 0/1/1 | 0.0% |
| C53 | Italian Game: Classical Variation | 1 | 1/0/0 | 100.0% |
| C42 | Petrov's Defense | 1 | 0/1/0 | 0.0% |
| C89 | Ruy Lopez: Closed | 1 | 0/1/0 | 0.0% |
| C70 | Ruy Lopez: Morphy Defense | 1 | 1/0/0 | 100.0% |
| B01 | Scandinavian Defense: Main Line | 1 | 1/0/0 | 100.0% |
| B33 | Sicilian: Sveshnikov | 1 | 0/0/1 | 0.0% |
| B10 | Caro-Kann | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 6 | 2/3/1 | 33.3% |
| D02 | Catalan | 3 | 0/1/2 | 0.0% |
| A13 | English Opening | 3 | 1/1/1 | 33.3% |
| D37 | Indian Defense | 2 | 0/2/0 | 0.0% |
| B13 | Caro-Kann: Exchange Variation | 2 | 0/1/1 | 0.0% |
| A05 | Réti Opening: Spassky Variation | 1 | 1/0/0 | 100.0% |
| C26 | Vienna Game | 1 | 0/0/1 | 0.0% |
| A45 | Indian Defense: Tartakower Attack | 1 | 1/0/0 | 100.0% |
| C53 | Italian Game: Classical Variation | 1 | 0/0/1 | 0.0% |
| D02 | London System | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2026 | Ovitigala,Chenitha Mithvidu | 2,105 | World Youth Open U16 2026 | B90 |
| Jul 2026 | Hertlein,Irena | 2,054 | Ceske Budejovice Open A | B92 |
| Dec 2025 | Lucas Ni | 2,003 | Hong Kong Open 2025 | C11 |
| Jul 2026 | Policar,Martin | 1,981 | Ceske Budejovice Open A | A13 |
| Dec 2025 | Aadya Ranganath | 1,809 | Hong Kong Open 2025 | C70 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| World Youth Open U16 2026 | 2026 | 11 | 4.5 | 2,019 |
| World ol U16 | 2023 | 9 | 5 | 1,700 |
| Hong Kong Open 2025 | 2025 | 9 | 3.5 | 1,889 |
| Ceske Budejovice Open A | 2026 | 9 | 4 | 1,981 |
| 51st Seville Open | 2026 | 1 | 0 | 2,099 |
Interactive opening tree from all 39 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Chang-Jyu Sun's chess games?
39 games by Chang-Jyu Sun, from Sep 2020 to Aug 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Chang-Jyu Sun has played.
What does Chang-Jyu Sun play on the first move as White?
Across 17 games with White in our database, Chang-Jyu Sun opens with 1.e4 (100% of games). Against 1.e4 as Black, Chang-Jyu Sun answers 1...c5 (60% of games), 1...e5 (20% of games), 1...c6 (20% of games). Against 1.d4: 1...Nf6 (57% of games), 1...d5 (43% of games).
What openings does Chang-Jyu Sun play as White?
As White, Chang-Jyu Sun's most-played openings in our database are: Sicilian (3 games, 0.0% win rate); Sicilian: Alapin (2 games, 50.0% win rate); Modern Defense (2 games, 0.0% win rate). The full breakdown of 17 games with White is in the table above.
What openings does Chang-Jyu Sun play as Black?
As Black, Chang-Jyu Sun most often plays: Sicilian: Najdorf (6 games, 33.3% win rate); Catalan (3 games, 0.0% win rate); English Opening (3 games, 33.3% win rate). See the table above for the top ten Black openings across 22 games.
What is Chang-Jyu Sun's FIDE rating?
Chang-Jyu Sun is currently rated 1,970 in classical chess, 1,651 in rapid and 1,776 in blitz. Peak classical rating: 1,970 (Aug 2026).
How many games has Chang-Jyu Sun played?
Our database contains 39 games by Chang-Jyu Sun, covering Sep 2020 to Aug 2026. Overall record: 11 wins, 12 draws, 16 losses (28.2% win rate).
How do I prepare against Chang-Jyu Sun?
39 games by Chang-Jyu Sun reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.