Prepare against Sergej Krefenstein
DEU · World #18,712 classical · FIDE ID 12922072
Our database contains 437 games by Sergej Krefenstein, covering Sep 2010 to Aug 2026. Below you'll find Sergej Krefenstein's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Sergej Krefenstein 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 | 2,069 | 2,225 | Dec 2015 |
| Rapid | 2,022 | 2,032 | Jul 2025 |
| Blitz | 2,011 | 2,116 | Sep 2018 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 437 | 209 | 101 | 126 | 47.8% |
| As White | 217 | 115 | 44 | 58 | 53.0% |
| As Black | 220 | 94 | 57 | 68 | 42.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Sergej Krefenstein's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Sergej Krefenstein's side.
First moves as White (217 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 96 | 44.2% | 67.2% |
| d4 | 87 | 40.1% | 59.2% |
| c4 | 17 | 7.8% | 67.6% |
| Nf3 | 11 | 5.1% | 40.9% |
| g3 | 4 | 1.8% | 75.0% |
| f4 | 1 | 0.5% | 100.0% |
Main lines as White
- 1.e4 — 44% of White games, 67.2% score
- …c5 (36% of these games) — Krefenstein usually continues Nf3 (55.3% score)
- …e5 (19% of these games) — Krefenstein usually continues Nf3 (67.6% score)
- …e6 (18% of these games) — Krefenstein usually continues d4 (70.0% score)
- 1.d4 — 40% of White games, 59.2% score
- …Nf6 (52% of these games) — Krefenstein usually continues c4 (47.1% score)
- …d5 (37% of these games) — Krefenstein usually continues c4 (67.3% score)
- …f5 (5% of these games) — Krefenstein usually continues Nf3 (0.0% score)
As Black against 1.e4 (100 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 26 | 26.0% | 59.6% |
| c5 | 25 | 25.0% | 68.0% |
| e5 | 23 | 23.0% | 50.0% |
| c6 | 19 | 19.0% | 60.5% |
| d6 | 3 | 3.0% | 50.0% |
| g6 | 2 | 2.0% | 75.0% |
As Black against 1.d4 (77 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 60 | 77.9% | 51.7% |
| d5 | 8 | 10.4% | 25.0% |
| e6 | 5 | 6.5% | 30.0% |
| f5 | 2 | 2.6% | 75.0% |
| g6 | 1 | 1.3% | 100.0% |
| c5 | 1 | 1.3% | 100.0% |
Sergej Krefenstein's chess games
All 437 games by Sergej Krefenstein in the Chess.ceo database (Sep 2010 - 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: 209 wins, 101 draws, 126 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A46 | Indian Defense | 16 | 8/4/4 | 50.0% |
| B23 | Sicilian: Closed | 10 | 7/0/3 | 70.0% |
| D32 | Queen's Gambit Declined | 10 | 5/5/0 | 50.0% |
| A13 | English Opening | 8 | 7/0/1 | 87.5% |
| B06 | Modern Defense | 8 | 6/2/0 | 75.0% |
| A28 | English Opening: Reverse Sicilian | 8 | 3/1/4 | 37.5% |
| B07 | Pirc Defense | 7 | 3/2/2 | 42.9% |
| C45 | Scotch Game | 6 | 4/1/1 | 66.7% |
| E11 | Catalan | 6 | 2/2/2 | 33.3% |
| C06 | French: Tarrasch Variation | 5 | 4/0/1 | 80.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A34 | English Opening | 11 | 6/3/2 | 54.5% |
| A47 | Indian Defense | 10 | 4/1/5 | 40.0% |
| A57 | Benoni Defense | 10 | 5/3/2 | 50.0% |
| B24 | Sicilian | 9 | 6/1/2 | 66.7% |
| A30 | English Opening: Symmetrical | 7 | 3/2/2 | 42.9% |
| A20 | English Opening: Reverse Sicilian | 7 | 2/1/4 | 28.6% |
| C02 | French: Advance Variation | 7 | 3/3/1 | 42.9% |
| B12 | Caro-Kann: Advance Variation | 6 | 4/0/2 | 66.7% |
| B13 | Caro-Kann: Exchange Variation | 6 | 4/1/1 | 66.7% |
| C03 | French: Tarrasch Variation | 6 | 2/0/4 | 33.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2015 | Drazen Muse | 2,408 | 14th Berlin Lichtenberger Open | B06 |
| Aug 2019 | Atila Gajo Figura | 2,394 | 18th Berlin Lichtenberger Open | B42 |
| Aug 2014 | Martin Bruedigam | 2,342 | 13th Berlin Lichtenberger Open | C47 |
| Apr 2019 | Hannes Leisner | 2,296 | Oberliga Nord O 1819 | B42 |
| Oct 2012 | Clemens Rietze | 2,286 | 8th Berlin Lichtenrade Open | C12 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Berlin Werner Ott Open | 2023 | 56 | 33 | 2,105 |
| ch-Berlin MT | 2019 | 36 | 18.5 | 2,179 |
| ch-Berlin QT | 2015 | 18 | 15 | 2,211 |
| Berlin Kreuzberg Open | 2016 | 18 | 12 | 2,159 |
| ch-Berlin qualification | 2012 | 16 | 10.5 | 2,043 |
| ch-Berlin | 2022 | 10 | 3 | 1,949 |
| 12th Berlin Lichtenrade Open | 2016 | 9 | 6.5 | 2,260 |
| 15th Berlin Lichtenberger Open | 2016 | 9 | 6.5 | 2,150 |
Interactive opening tree from all 437 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Sergej Krefenstein's chess games?
437 games by Sergej Krefenstein, from Sep 2010 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 Sergej Krefenstein has played.
What does Sergej Krefenstein play on the first move as White?
Across 217 games with White in our database, Sergej Krefenstein opens with 1.e4 (44% of games), 1.d4 (40% of games), 1.c4 (8% of games). Against 1.e4 as Black, Sergej Krefenstein answers 1...e6 (26% of games), 1...c5 (25% of games), 1...e5 (23% of games). Against 1.d4: 1...Nf6 (78% of games), 1...d5 (10% of games), 1...e6 (6% of games).
What openings does Sergej Krefenstein play as White?
As White, Sergej Krefenstein's most-played openings in our database are: Indian Defense (16 games, 50.0% win rate); Sicilian: Closed (10 games, 70.0% win rate); Queen's Gambit Declined (10 games, 50.0% win rate). The full breakdown of 217 games with White is in the table above.
What openings does Sergej Krefenstein play as Black?
As Black, Sergej Krefenstein most often plays: English Opening (11 games, 54.5% win rate); Indian Defense (10 games, 40.0% win rate); Benoni Defense (10 games, 50.0% win rate). See the table above for the top ten Black openings across 220 games.
What is Sergej Krefenstein's FIDE rating?
Sergej Krefenstein is currently rated 2,069 in classical chess, 2,022 in rapid and 2,011 in blitz. Peak classical rating: 2,225 (Dec 2015).
How many games has Sergej Krefenstein played?
Our database contains 437 games by Sergej Krefenstein, covering Sep 2010 to Aug 2026. Overall record: 209 wins, 101 draws, 126 losses (47.8% win rate).
How do I prepare against Sergej Krefenstein?
437 games by Sergej Krefenstein 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.