Output to
JS-script
JSON
CSV text , or just fast polyglot keys
CSV text
use memory much
to boost performance , max-depth limit
, max-variants
download
Save file
Drop a .bin or .abk file here.
This is a tool for extraction of book-files of chess openings. Polyglot .bin and Arena .abk currently. Recreates the chess tree till the positions (bin) or variants (abk) of the book. It works but very slowly. It was easier to write this javascript lame, no time make it .c , sorry. Use options above to limit the scope. The browser's memory garbage collector may crash sometimes. Just uncheck the "memory usage" checkbox and it will more recalculate data and save some memory. Can uncheck while generating the tree also, the browser's VM memory usage reaches gigabytes. Also "download" checkbox avoids displaying of too large text into the text area. Open in a new tab, set output format, limit depth, drop a file and wait - will make it somehow maybe. Try tiny book samples on green buttons at first to see preferred output. Chessforeva, jan.2025