Sunday, May 15, 2011


Rules :

  1. The grid is made up of magnetic and non-magnetic plates.
  2. Each magnetic plate has 2 halves: one positive (+) and one negative (-).
  3. Halves with the same polarity cannot touch each other vertically or horizontally.
  4. The digits outside the grid indicate the number of magnetic halves with a particular polarity in each row/column.
Example :

 Solution :

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