## 1. Use two colors. one for "definitely yes", and the other for "definitely no".

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## 2. Find the spaces that must have something in them. For example, if the number provided is 8, that means that you need to color 8 consecutive squares in a 10 square line. There are only 3 possibilities to fit it in; starting from one end going right, starting from the other edge going left, or coloring the middle eight leaving a single square blank on each side. In all options, the middle 6 are always colored-these are the "definite yes".

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## 3. Find the spaces that are "definitely not" colored. For example, if the

## number is 3 and you already know one of the squares, the rest of them are either the two consecutive squares to the right, two consecutive squares to the left, or a combination within that range. Meaning that anything beyond the range is "definitely not".