Send your prep to a teammate or student
Turn your critical positions into a shareable link — perfect for handing a training partner or student your prep before their round.
Build a prep gallery OTB · Lichess · FIDE
Know their next move before they make it
10M+ over-the-board games from professional tournaments worldwide: find the gaps in their prep and make them pay for it.
Live database — updated continuously
Everything you need
to beat any opponent.
10M+ OTB Games
The largest collection of over-the-board tournament games, continuously updated from professional events worldwide.
Lichess Integration
Search any Lichess username instantly. Combine online and OTB games in a single unified analysis view.
Opening Analysis
ECO codes, interactive tree view, and preparation sheets — understand your opponent's repertoire before you sit down.
What players are saying
“Con Perdura las preparaciones son más fáciles y rápidas, ahorrando tiempo crucial entre partida y partida, y sin miedo a que se mezclen partidas online con la función OTB”
Andrés Merario Alarcón
International Master (IM)
“Muy útil. [...] utilicé Perdura en el Campeonato de España por Equipos. La base venía ya sin partidas de los Titled Tuesdays, por lo que no tuve que borrarlas manualmente, ganando todavía más tiempo. También permite descargar las partidas de usuarios de Lichess y Chess.com. [...] Me sorprendió que Perdura se actualizara incluso con las partidas del torneo en curso, y que incluyera partidas de la Federación Madrileña [...] que no aparecen ni en webs como YXXXXXX.”
Andrea Stella
Grandmaster (GM)
Share your prep
Desktop App
Install natively
A lightweight native app (~10 MB) — no Electron, no browser tab, just the app.
Questions
How do I prepare for a game against a specific opponent?
Search their name in Perdura. You'll see their tournament games, the openings they play with White and with Black, and how often they choose each line, so you arrive knowing what to expect and what to review.
Where can I see a player's over-the-board (OTB) games?
Perdura gathers over 15 million over-the-board tournament games from TWIC, KingBase, Lumbra's Gigabase, Baza Szachowa, Lichess broadcasts and other federation and tournament sources, and checks for new games every day. Search the player and see all their games in one place.
Which openings does my opponent play, and how often?
Perdura groups their games into an opening tree, with how often each move was played and how it scored, split by colour. With Pro you also see their accuracy by game phase and where they tend to go wrong (in beta).
Where do the games come from, and how often are they updated?
From TWIC (The Week in Chess), KingBase, Lumbra's Gigabase, Baza Szachowa, Lichess broadcasts and other federation and tournament sources. The live sources (TWIC, Lichess broadcasts, federation and tournament sites) are checked for new games every day; KingBase, Lumbra's Gigabase and Baza Szachowa make up the historical archive.
Is it free? What does Pro include?
You can use Perdura for free, with no card: 5 opponent searches a day with access to the whole database, and PGN downloads of up to 100 games. Pro (€6/month or €39/year, with a 14-day free trial on your first subscription) lets you prepare against up to 35 different players a month with all their games, and adds opponent style analysis (in beta), a server engine at depth 22, and PGN downloads without the 100-game limit.
Is it for club players or only masters?
For anyone who plays tournaments. If your opponent has games in those sources, you'll find them, whatever their rating.
Ready to win your next game?
Search any opponent, spot the holes in their repertoire, and walk in one move ahead.