| In these puzzles, each letter of the alphabet is substituted by another. Your task is to decrypt the sentence by identifying the correct letter substitution |
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| The window is split into 2 parts. The top part shows the encrypted text with room for the solution. The solution part will change based on your answers. |
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| The bottom part shows an alphabet grid where you can enter your decision. If for example, you think that the letter S has been substituted by the letter G then you would enter S in the box below the letter G. |
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| If you enter the same letter twice then both of the entries will be set to red. To remove a letter select the appropriate table entry and press the space bar. |
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| There are 4 Enigma puzzles in each file. To move from one puzzle to the next you use the arrow buttons provided in the toolbar, or the menu option Next and Previous. |
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