#1Cutting
Sashes between blocks should be cut 2-1/2" x 9", not 2-1/2" x 8-1/2".
Official — archived source see the source ↗
One Block Wonder (Square Roots option) — Errata & Corrections
Quiltmaker March/April 2013
1 indexed correction. Check these against your copy before cutting — printings can differ.
Know a correction we're missing?
Printed from niftyfiftyquilting.com/errata/one-block-wonder-square-roots-option — check that page for corrections added after your printout, and always confirm against the linked official source.