30 August 2014

206. Square 4X4: Remove sticks leaving no squares

Easy Medium Hard Extreme


What is the MINIMUM number of sticks to be removed leaving NO squares?

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A minimum of 9 sticks must be removed. There are also other solutions.

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2 comments:

  1. Anonymous05 June, 2016 08:55

    you can remove 9.

    ReplyDelete
  2. Dawie05 June, 2016 09:44

    Great! The original answer was 10 but the solution has been changed to 9 as presented by you. Thanks!

    ReplyDelete

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