Today's 3-In-A-Row Puzzles
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
Note: take a look at the information about the difficulty levels.
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Objective / Rules
Fill the grid with Blue(X) or White(O) squares.
Every row and column has an equal number of Blue(X) and White(O) squares.
A 3-In-A-Row of the same colour / letter isn't allowed.
Read the help / walkthrough page on 3-In-A-Row puzzles for a more detailed explanation and a walkthrough.
Note: only when supported by your computer / device / browser / etc.
Left-click = Blank >> Blue(X) >> White(O) >> Blank.
Right-click = Blank >> White(O) >> Blue(X) >> Blank.
If you click 'check' the system will check for incorrect squares. If 'show mistakes when checking' is ticked / checked they will be marked with an exclamation mark (!). If 'show counts' is ticked / checked then the system will show the current count of the Blue(X) and White(O) squares.
This puzzle has exactly one correct answer, which can be found using logic and deduction alone, and no guesses are required. If you think that you have found another answer, then please check the rules carefully for a reason the other answer isn't allowed.
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