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3. Christmas Tree Lights Game
4. Christmas Tree Lights Game Tips

Christmas Tree Lights Game Tips

There are a few simple rules for you to follow:

• The correct solution will not have open ends, nor will it have loops.
• Start from the edges, e.g.:
  
  
  
  
  
  
• A cross must have all the adjacent blocks point to it:
  
  
  
  
  
  
• Keep in mind the blocks which you are certain about their orientation, e.g.:
  
  The highlighted block can have a number of different orientations:
  
  
  But if you know that the orientation of the bulb is correct, then the highlighted block can only be oriented as follows:
  
  
  

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