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Puzzles involving various geometric shapes, in a flat plane and in three-dimensional space.
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> Geometry (1)
As in the first Blob's Borders:

Divide the below grid into ten areas (blobs) so that each area:

  • ... is contiguous (all cells connect via edges, not just vertices).
  • ... has exactly one of the ten numbers shown in the grid.
  • ... contains as many cells as the number that it contains.
  • ... borders (along edges, not vertices) the same number of other areas as the number that it contains; for example, a 6-cell area will border six other areas, again based on the digit 6 that is contained within its bounds.

2 4
3
4
5
6 2 3
5 2

An example of a completed puzzle of this type is

3 4
4 4 3
6
4
3 3 2

Puzzle by Thinh Van Duc Lai, from N.Y.Times Magazine, March 31, 2019.
(Solution Posted, 4 Comments) Submitted on 2019-04-10 by Charlie   
Page 1 of 31   next >>    
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