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CAISSA Chess

PGN Reader

No game loadedOpen a PGN file to begin
Open PGN
Black—
Open your first PGNChoose a file, paste PGN text, or drop a .pgn file here.Your PGN stays on this device.
White—
PlayersPlayer game collections
FreeCollections available without an account or credits
Your CAISSA collections will appear hereChoose a library family above or search for a collection.
Share
Start positionResult —
Local import

Paste PGN text

Your text is processed locally and is not saved to your account.
Reader guide

Options & About

Game & image

These actions stay on this device. CAISSA does not upload your PGN or board image.

What each control does

Open PGN
Open a file or paste PGN text. You can also drag and drop a .pgn file directly over the board.
Replay
Go to the start, step backward, play automatically, step forward, or jump to the final position.
Flip
Switch the board between White and Black orientation.
Zoom
Open a distraction-free board view and return to the full Reader.
Albums
Browse Players, Championships, Candidates, Tournaments, and Openings inside a bounded scrollable list.
Games
Select a game from the current PGN. Page Up and Page Down move between games.
Notation
Follow the moves, comments, annotations, and variations synchronized with the board.
Analysis
Shows two local Stockfish lines when Engine is turned on.
Export Diagram
Creates a framed 1200 × 1200 CAISSA puzzle from the current position, with the side-to-move instruction in the selected interface language.
Share Diagram
Shares that same branded puzzle image, or downloads it when the browser cannot share files.
Share
Copy the current game as PGN or the current position as FEN.

About CAISSA PGN Reader

Read and replay your PGN files privately, browse historical chess archives, study complete player collections, explore openings in safe pages, and analyze positions with the local Stockfish engine.

Player figurines

  • KingOpen World Champion
  • QueenWomen’s World Champion
  • RookWorld Championship match or final challenger
  • KnightOther featured player collection

Find a collection quickly

Open Albums, choose Players, Championships, Candidates, Tournaments, or Openings, and type any part of a name. For example, capa finds José Raúl Capablanca.

Free library access

Free All 82 Player game collections are currently free, together with the historical, tournament, and opening archives. No account or credit is required to replay them.

Credits are reserved for future CAISSA-created study packs, server analysis, and other original services—not for these raw player PGN collections.

CAISSA will replace the current player files progressively with independently built, provenance-tracked collections in a future Season.