I am using xskak 1.7 package developped by Ulrike Fischer. It's a very clean way to write my book about chess which is now online on amazon, thanks a lot for that !
I ve recently made an ebook version BUT got some big troubles when uploading the manuscript in pdf format to amazon kindle : the diagram don't load anymore.
.
Amazon result preview :
Should i convert my pdf to .docx format ?
Amazon website says : "We accept PDF files, but they can contain embedded formatting and/or images that don't convert well to eBooks. If you'd like to upload a PDF file for your book, preview it before you publish. If you see any issues or if your book doesn't look the way you want it to, we recommend converting your PDF to a Word document and formatting it according to our eBook Formatting Guide." but i didn't manage to success :(
Thanks for help,

chessboard.4htyet and I found that I am still unable to patch the\chessboardcommand to produce an image. – michal.h21 Oct 07 '19 at 21:12\Picturecommand is closed, so it ends as a string. Here are my test files: https://gist.github.com/michal-h21/293d567ce11e1f1eba0112d908a26245 (I've tried a similar configuration for\chessboardfirst, but the result was the same) – michal.h21 Oct 07 '19 at 21:44