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FIDE ID 12922072 · born 1980 · last updated 5/12/2026
Standard
2036
Rapid
2021
Blitz
2011
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Shortlist public Lichess and chess.com accounts for Krefenstein via fuzzy name, country, and rating-band signals. Fastest path; works without sample games.
AI matching by sample game
Searching public databases for known games of Krefenstein…
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Real tournament games of Sergej Krefenstein from public sources. Select a game to replay it on the board.
All games
+5 =6 -5 · score 50% · 16 games
As White
+3 =3 -3 · score 50% · 9 games
As Black
+2 =3 -2 · score 50% · 7 games
Simcaks,Sergejs(1906)
Krefenstein,Sergej(2048)0-1
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As White
| Event | Games | Dates |
|---|---|---|
| Kurt Richter Mem 2025 | 5 | 2025-10-31 to 2025-11-02 |
| Werner-Ott-Open 2025 | 1 | 2025-08-03 |
| BSV BEM Masters 2025 | 9 | 2025-04-19 to 2025-04-27 |
| 6th Spandau Christmas | 1 | 2023-12-28 |
Prep report
Their repertoire vs yours
Once you have a candidate account, we cross-reference its opening tree against your imported games, surfacing the lines they play that you don’t know, the leaks in their repertoire you can punish, and the gaps in yours you’ll need to plug before the game.
Pick a candidate account above to unlock the report.
As Black
AI matching from found games
We already found 16 of Krefenstein’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources: twic (16) - latest 11/2/2025
Helps match accounts whose display name is not written in Latin letters.
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Uses 1 credit. Results take a few minutes; the results page updates itself.