Nested Squares – Vertex Differences Game

Put 4 numbers at the smallest square vertices. Each outer square is made by writing the absolute differences of adjoining vertices. Keep going outward and fill all blanks.

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R
B
L
Layers
Difficulty

Rule used each layer:

  • NextTop = |Top − Right|
  • NextRight = |Right − Bottom|
  • NextBottom = |Bottom − Left|
  • NextLeft = |Left − Top|
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