Bimagic Squares of order 11

Only a couple of bimagic squares of order 11 by Fredrik Jansson and Chen Mu-tian were known for a long time. But in 2018 Walter Trump and Holger Danielsson created 129 new and different bimagic squares.

From all squares you can create other bimagic squares by applying row-column-transformations.

Fredrik Jansson   (2004)
Chen Mu-tian   (2005)
Walter Trump – Holger Danielsson   (2018)