Is it time for a chess checkup?
A plain-English introduction to ChessCheckup.com, a principles-first chess habit check for beginner and intermediate players, powered by the Elo+Chess reporting engine.
Read articleNotatki badawcze na temat analityki szachowej, mapowania ocen, konstrukcji testów porównawczych i metod doskonalenia opartych na danych używanych przez Elo+Chess.
A plain-English introduction to ChessCheckup.com, a principles-first chess habit check for beginner and intermediate players, powered by the Elo+Chess reporting engine.
Read articleNotatka metodologiczna wyjaśniająca, w jaki sposób Elo+Chess tworzy warstwowe krzywe porównawcze Lichess, cele percentylowe historii gracza i grafiki raportów produkcyjnych z dużych próbek stanu ruchu i gry gracza.
Przeczytaj papierNotatka dotycząca metod opisująca badanie mapowania ocen tej samej nazwy użytkownika Elo+Chess, motywację dopasowania modalnego, kryteria filtrowania i bieżące szacunki konwersji Lichess do Chess.com według typu gry.
Przeczytaj papierA Lichess.org study of the Halloween Gambit's frequency, practical success, played-versus-declined outcomes, and opening clock impact from January 2025 through May 2026.
Read articleA Lichess.org study of tucked Cow setups, single-cow redeployments, and the full b/g-file knight shuffle from January 2025 through May 2026.
Read articleA public Medium article sharing Elo+Chess research observations and charts for a wider chess audience.
Read on MediumAn observational Lichess.org study of more than one billion public games testing whether 1min bullet and 3min blitz volume is associated with slower 10min rapid improvement for beginner and club-level players.
Read articleA low-key research note on Lichess 10+0 rapid resignation-like endings. In this dataset, well-sampled rating bands from under 800 to nearly 1800 typically resign around a 7-pawn Stockfish disadvantage.
Read articleA Lichess study comparing how many pieces remain on the board at valid checkmate and engine-confirmed resignation-like endings across Bullet, Blitz, 10min Rapid, and >10min Rapid.
Read studyStatic research gallery showing the average move number before each original pawn is first touched, split by game type, color, pawn file, and Elo bucket.
Explore galleryStatic research gallery for White f3 and Black f6 rates, including before castling, before development completion, and associated win-rate views by Elo bucket.
Explore galleryStatic research gallery showing the average row where pawns are captured, how often promoted pieces are captured immediately, and how often captured promotions produce no net material gain.
Explore gallery