Includes AI Based Solver 1.2 along with offline Solver. 

Trained data is not available for this solver. You will either have to train yourself for offline solver or use API based solving which does not require any training. 

The offline solver selects X by default if it could not find answer. To disable this while training the images, please set ENABLE_NO_ANSWER_SELECTION to false in the code. Never train X or No Answer.