How to win Professional Rumicube
A probability-grounded handbook for competitive play, built on five million simulated deals · By Winfield
Living Edition 1.1, the only volume on the shelf past its first revision: edition 1.0 shipped ten chapters, and 1.1 adds chapter 11, The Twist Variant and Its Four Jokers. The edition changelog is printed in the book itself, so the revision is readable rather than merely asserted. PDF directly inspected at 38 pages.
ISBNs assigned from the Odisena block (PDF 979-8-951779-10-6; EPUB 979-8-951779-11-3); the authoritative registry claim is a separate database action, not asserted here.