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Mrs Perkins's Quilt (2017)
"For Christmas, Mrs. Potipher Perkins received a very pretty patchwork quilt constructed of 169 square pieces of silk material.
"For Christmas, Mrs. Potipher Perkins received a very pretty patchwork quilt constructed of 169 square pieces of silk material. Usually, that means the 2-connected sub-element can be moved to a corner, and the "defect" removed to make a 3-connected version, which is then found in the SISS search. Antreas P. Hatzipolakis and J. H. Conway Math Forum Discussions Ed Pegg Jr, Lance Gay, Erich Friedman, Richard Guy, Bouwkamp, Duijvestijn and Antony Boucher, optimal quilt listings, primitive quilts, C programs Ed Wynn.
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