Can you complete the grid without creating a 3-In-A-Row?
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8 x 8 Easy Medium
10 x 10 Easy Medium
12 x 12 Easy Medium
14 x 14 Easy Medium
18 x 18 Weekly Special
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Notes

Can you fill the grid with Blue(X) and White(O) squares without creating a 3-In-A-Row of the same colour/letter? Each row and column has an equal number of Blue(X) and White(O) squares.
Read the help / walkthrough page on 3-In-A-Row for the rules, a more detailed explanation, and a walkthrough.
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