Hilda The Builder Puzzle - Solution

The Puzzle:

Hilda The Builder
Hilda was playing with her building bricks when she made a tower like the one below:



How many bricks did Hilda use altogether?

Our Solution:

While I make no claims to be an expert on perspective drawing, the diagram shows the building made of 22 blocks.



In fact it is possible to add up to 3 other blocks without affecting the three views.
Puzzle Author: Stephen Froggatt

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