Bimagic Squares

There are also some methods to create bimagic squares of order n=9.

Order Method
9 Coccoz
9 Coccoz (Pattern)
9 Hendricks
9 Portier
9 Tarry - Cazalas
9 Chen
9 de Winkel
9 Symmetrical Euler Squares

All algorithms are described in detail in chapter Bimagic Squares (german: Bimagische Quadrate) together with some other PDF documents.

DocumentsDetailed description of algorithms to create magic squares