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FIDE ID 21850801 · born 2003 · last updated 5/12/2026
Standard
1959
Rapid
1955
Blitz
1942
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Shortlist public Lichess and chess.com accounts for Marciniak 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 Marciniak…
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Real tournament games of Leonard Marciniak from public sources. Select a game to replay it on the board.
All games
+5 =7 -10 · score 39% · 22 games
As White
+2 =4 -5 · score 36% · 11 games
As Black
+3 =3 -5 · score 41% · 11 games
Swider,Pawel(2049)
Marciniak,Leonard(1959)½-½
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As White
| Event | Games | Dates |
|---|---|---|
| ch-Malopolska 2026 | 7 | 2026-06-04 to 2026-06-07 |
| ch-Malopolska 2025 | 6 | 2025-06-19 to 2025-06-21 |
| ch-POL U20 2023 | 9 | 2023-10-24 to 2023-10-31 |
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.
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As Black
AI matching from found games
We already found 22 of Marciniak’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources: twic (22) - latest 6/7/2026
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.