Assertion: cube's square | /r/HasProperty | 3 white
Facets:
Source sentences:
text: If the hexominoes are placed on a checkerboard pattern, then 11 of the hexominoes will cover an even number of black squares (either 2 white and 4 black or vice versa) and the other 24 hexominoes will cover an odd number of black squares (3 white and 3 black).