How Many Squares?


after Professor Louis Hoffmann

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Puzzle 1. Count how many perfect squares of all possible sizes are hidden in the cross of dots above. A square is counting if any four dots are placed exactly in its respective corners.

Puzzle 2. It is more difficult than previous one. You have to remove exactly 6 dots so that any four dots from those remaining would not lie in the corners of a square. So you'll get the "no-squares" position for which there are no four dots that form a perfect square.


Mini-Contest 8 - How Many Squares? is FINISHED

We got a lot of your answers to Puzzles 1 and 2. Both puzzles were really hard puzzle nuts, so for this reason we decided to post here the names of all our contestants who sent in correct solutions to Puzzles 1 and 2. 

Now we'd like to propose this contest's results and some details about the puzzles and their
solutions. With this Mini-Contest 8 is finished. 

It was our first Mini-Contest with
Puzzle Playground sector, and you, our fellow visitors, were extremely active. We thank you for this, and look forward to the next Mini-Contests. Happy Puzzling!!

Contest Results

Puzzle 1
The winners are:
1. Jensen Lai.
2. Joao Paulo.
3. Marsha Landau.
4. Clayton Snyder.
5. Payne Christopher.
6. Todd.
7. Jim Barnard.
8. Tracie Kalliainen.
9. James Boseovski.
10. Brian Birkey.
11. Yahali Sherman.

Puzzle 2
The winners are:
1. Jensen Lai.
2. Joao Paulo.
3. James Boseovski.
4. Brian Birkey.
5. Jim Barnard.
6. Ram Prasath.
7. Jenny Ormos.
8. Jonathon Houghterine.
9. Yahali Sherman.

About the Mini-Version
Also we got the only correct solution to the small version - from Ana L. Argomedo. See its
Last Updated: January 21, 2008
PDF Version (239 KB)


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