"Hashiwokakero (橋をかけろ Hashi o kakero; lit. "build bridges!") is a type of logic puzzle published by Nikoli. It has also been published in English under the name Bridges or Chopsticks (an understandably mistaken translation; the hashi of the title, 橋, means bridge; hashi written with another character, 箸, means chopsticks)." (Source: http://en.wikipedia.org/wiki/Hashiwokakero)First and foremost, let's read through the game rule of Hashiwokakero or Link Bridges.
Terms:
Islands are the cells which start out with numbers from 1 to 8.
Goal:
To connect all of the islands into a single connected group by drawing a series of bridges between the islands.
The bridges must follow certain criteria:
1. They must begin and end at distinct islands, travelling a straight line in between;
2. They must not cross any other bridges or islands;
3. They may only run orthogonally;
4. At most two bridges connect a pair of islands;
5. The number of bridges connected to each island must match the number on that island.
Instruction:
1. Left click an island, hold and drag toward another island.
2. Release the mouse when both islands are hightlighted.
3. To delete existing "bridge", one can increase the number of bridge connection between the islands to three and the "bridge"between the islands is gone.
4. To verify the solution, please click "Ready".
5. To process another game, please click "New Puzzle"
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Written by: Xaivier Chia
reference: http://www.puzzle-bridges.com
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