The square lattice with alternating coloured disks and the two kinds of square Truchet tiles that are compatible with each face of the lattice.

Eleanor is a postdoctoral researcher at the University of Manchester. A mathematician by training, she works on developing mathematical models to improve our understanding of biological mechanisms in medicine, with particular interests in women’s health and autoimmune conditions. When not doing mathematics, she crochets, sews and reads everything and anything.

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