Prepare against Stefan Costache
Spain · World #71,945 classical · FIDE ID 94765383
When preparing against Stefan Costache, expect 1.e4 in 50% of White games. Against 1.e4 the reply is 1...c6 (70% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 32 games by Stefan Costache, covering Jun 2023 to Oct 2026. Below you'll find Stefan Costache's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Stefan Costache 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 | 1,757 | 1,815 | Sep 2026 |
| Rapid | 1,758 | 1,758 | Oct 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 32 | 10 | 5 | 17 | 31.3% |
| As White | 16 | 6 | 2 | 8 | 37.5% |
| As Black | 16 | 4 | 3 | 9 | 25.0% |
FIDE rated record
From FIDE's official rated-game ledger (2023-2026): 311 rated games against 269 different opponents, across 54 events in 1 countries. These counts cover FIDE-rated play only, so they differ from the database totals above.
By time control
| Format | Games | W | D | L | Win rate | Avg opp | Perf | Unbeaten |
|---|---|---|---|---|---|---|---|---|
| Classical | 148 | 62 | 31 | 55 | 41.9% | 1,631 | 1,573 | 10 |
| Rapid | 153 | 59 | 18 | 76 | 38.6% | 1,662 | 1,555 | 6 |
Against the field
| Opposition | Games | W | D | L | Win rate |
|---|---|---|---|---|---|
| Against higher-rated | 162 | 41 | 29 | 92 | 25.3% |
| Against lower-rated | 55 | 26 | 15 | 14 | 47.3% |
Wins over titled players: 1 vs WCM.
Tournament wins
2 tournament wins from 45 events.
Year by year
| Year | Games | W | D | L | Avg opp | Perf |
|---|---|---|---|---|---|---|
| 2026 | 31 | 15 | 6 | 10 | 1,757 | 1,712 |
| 2025 | 112 | 44 | 20 | 48 | 1,764 | 1,705 |
| 2024 | 104 | 45 | 16 | 43 | 1,670 | 1,603 |
| 2023 | 64 | 21 | 9 | 34 | 1,362 | 1,193 |
Move-by-move preparation stats
Straight from the preparation tree built over all of Stefan Costache's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Stefan Costache's side.
First moves as White (16 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 8 | 50.0% | 50.0% |
| d4 | 8 | 50.0% | 37.5% |
Main lines as White
- 1.e4 — 50% of White games, 50.0% score
- …c5 (50% of these games) — Costache usually continues Nf3 (37.5% score)
- …e5 (25% of these games) — Costache usually continues Nf3 (100.0% score)
- …e6 (13% of these games) — Costache usually continues d4 (50.0% score)
- 1.d4 — 50% of White games, 37.5% score
- …Nf6 (50% of these games) — Costache usually continues Bf4 (0.0% score)
- …d5 (38% of these games) — Costache usually continues Bf4 (66.7% score)
- …c5 (13% of these games) — Costache usually continues c3 (100.0% score)
As Black against 1.e4 (10 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c6 | 7 | 70.0% | 50.0% |
| e6 | 3 | 30.0% | 33.3% |
As Black against 1.d4 (2 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 2 | 100.0% | 50.0% |
Stefan Costache's chess games
All 32 games by Stefan Costache in the Chess.ceo database (Jun 2023 - Oct 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: 10 wins, 5 draws, 17 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D02 | London System | 7 | 2/0/5 | 28.6% |
| B38 | Sicilian: Accelerated Dragon | 2 | 0/1/1 | 0.0% |
| C11 | French: Classical Variation | 1 | 0/1/0 | 0.0% |
| C70 | Ruy Lopez: Morphy Defense | 1 | 1/0/0 | 100.0% |
| C72 | Ruy Lopez: Steinitz Defense Deferred | 1 | 1/0/0 | 100.0% |
| B40 | Sicilian: Four Knights | 1 | 0/0/1 | 0.0% |
| B13 | Benoni Defense | 1 | 1/0/0 | 100.0% |
| B99 | Sicilian: Najdorf | 1 | 1/0/0 | 100.0% |
| B12 | Caro-Kann: Advance Variation | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B10 | Caro-Kann | 3 | 1/2/0 | 33.3% |
| B15 | Caro-Kann: Two Knights Variation | 3 | 0/1/2 | 0.0% |
| D04 | Colle System | 2 | 1/0/1 | 50.0% |
| A27 | English Opening: Reverse Sicilian | 1 | 0/0/1 | 0.0% |
| C02 | French: Advance Variation | 1 | 0/0/1 | 0.0% |
| C01 | French: Exchange Variation | 1 | 1/0/0 | 100.0% |
| C07 | French: Tarrasch Variation | 1 | 0/0/1 | 0.0% |
| E11 | Bogo-Indian Defense | 1 | 0/0/1 | 0.0% |
| D11 | Réti Opening | 1 | 0/0/1 | 0.0% |
| B12 | Caro-Kann: Advance Variation | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Apr 2026 | Laura Vinolas Anglada | 1,980 | XXVI Foment Martinenc Op | C72 |
| Jun 2025 | Biel Torrent San Nicolas | 1,946 | XXV Foment Martinenc Open | B10 |
| Jun 2026 | Manuel Vivancos Munoz | 1,847 | XXVI Foment Martinenc Op | B99 |
| Jun 2026 | Juan Jose Jimenez Puig | 1,835 | XXVI Foment Martinenc Op | C01 |
| Jun 2025 | Alberto Sanchez Valencia | 1,800 | XXV Foment Martinenc Open | C70 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| XXV Foment Martinenc Open | 2025 | 8 | 3 | 1,831 |
| XXVI Foment Martinenc Op | 2026 | 7 | 3.5 | 1,946 |
| ch-ESP U10 rapid | 2024 | 7 | 2 | 1,277 |
| ch-ESP U10 | 2024 | 7 | 3 | 1,554 |
| Catalonia Championship Individual for Ages | Sub 12 | 2026 | 2 | 0.5 | 1,644 |
| ch-ESP Catalunya U10 | 2024 | 1 | 0.5 | 1,617 |
Interactive opening tree from all 32 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Stefan Costache's chess games?
32 games by Stefan Costache, from Jun 2023 to Oct 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 Stefan Costache has played.
What does Stefan Costache play on the first move as White?
Across 16 games with White in our database, Stefan Costache opens with 1.e4 (50% of games), 1.d4 (50% of games). Against 1.e4 as Black, Stefan Costache answers 1...c6 (70% of games), 1...e6 (30% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Stefan Costache play as White?
As White, Stefan Costache's most-played openings in our database are: London System (7 games, 28.6% win rate); Sicilian: Accelerated Dragon (2 games, 0.0% win rate); French: Classical Variation (1 games, 0.0% win rate). The full breakdown of 16 games with White is in the table above.
What openings does Stefan Costache play as Black?
As Black, Stefan Costache most often plays: Caro-Kann (3 games, 33.3% win rate); Caro-Kann: Two Knights Variation (3 games, 0.0% win rate); Colle System (2 games, 50.0% win rate). See the table above for the top ten Black openings across 16 games.
What is Stefan Costache's FIDE rating?
Stefan Costache is currently rated 1,757 in classical chess, 1,758 in rapid. Peak classical rating: 1,815 (Sep 2026).
How many games has Stefan Costache played?
Our database contains 32 games by Stefan Costache, covering Jun 2023 to Oct 2026. Overall record: 10 wins, 5 draws, 17 losses (31.3% win rate).
How do I prepare against Stefan Costache?
32 games by Stefan Costache 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.