The level 2 cluster made of 7 'Spectre' level 1 clusters with display of all the key-points making quadrilaterals (7 small and a big one) [Le 'cluster' de niveau 2 constitué de 7 'cluster's de niveau 1 de 'Spectre's avec visualisation des points-clefs regroupés en quadrilatères (7 petits et un grand)].




The discovery of the "EinStein" tiling of the plane by means of the "Spectre" monotile is due to David Smith, Joseph Samuel Myers, Craig Kaplan and Chaim Goodmann-Strauss (05/2023).


See some related pictures (including this one):



 
 
 
 
 
 
 









See the used random color set.


See the 7 'Spectre' level 1 clusters:




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