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Heise method

Building squares

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Land of the squares...

The first step of the Heise method is to build 4 square-shaped blocks. The interesting feature of this step is that the squares need not match in colour. Of course, it is very easy to rotate these squares into their correct places at a later time, however the goal now is to simply look for pieces that can be easily joined to form squares, without regard for their colour, and then attach them snugly to what you have built so far so that they won't obstruct further movement of pieces.

Two rules are as follows:

  1. All 4 squares must have one colour in common. In the above example, orange is the common colour.
  2. One square must be an inner square and the other 3 must be outer squares.

The meaning of inner and outer square is illustrated below:

Inner square Outer square


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