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Codebreaker
ROQA media services crossword puzzle software comic strips cartoons children crossword puzzles theme pages arrowwords chess

Each number in the grid represents a letter of the alphabet. Usually some letters are decoded as a start.

Codebreaker s/w

The start word is determinable.

Codebreaker

 

This type of puzzle is available in many different sizes, shapes, symmetries and designs. Prize games are possible as well.