Back on the Main screen, press and hold the image to select the Solution Strength if it needs to be changed from the current selection. A context menu will pop up and you will be able to select a new solving strength. 'Weak' and 'Normal' are available on the 'Lite' version; a 'Strong' will be available on the fully functioning version.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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