How do we start with huge puzzles ? You have learn how to scan the board efficiently. The way to do it is to look at the numbers in blocks 3×3 concentrating on the middle of it, since it is the number and possible connection with its neighbors. So, for example you are scanning for number 15. When you found it, move your eye to the left, right, up and down. But don’t worry, it will come automatically with practice. What to look for in next post.
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