Home

LPDO wiki

Guides for LPDO, the open-source desktop chess database.

Installing & upgrading

• Installing on Linux — add the LPDO apt repository and install, so updates become a plain sudo apt update && sudo apt upgrade (or grab the .deb files manually).
• Upgrading from before v0.5.0 — only if you're coming from a pre-v0.5.0 version: migrate your database to the new server location so your games still show (and how to recover them if you've already upgraded).

Reference databases

• Reference databases & wizard defaults — what reference sources the setup wizard enables by default (Ajedrez + TWIC + Lichess Broadcasts), and why.
• Import performance — how long importing ChessBase Megabase takes, step by step, on a laptop and a desktop-class server.

Analysis

• Move-quality marks, Replies & Strong — what the engine panel's !/? marks and the Replies/Strong columns mean (for chessdb.cn and Lichess/Stockfish), the reverse-engineered thresholds, and how caching + the reload button work.

How-to

• Merging duplicate players — combine the same player listed under different name variations after an import.
• How to export games from ChessBase to a PGN file