NoThree

NoThree or No-Three-In-A-Row

Initially you start with a square board that has a few Xs and a few Os.

Fill the rest of the board with Xs and Os, subject to these three rules:

- no three consecutive Xs (on any column or any line)

- no three consecutive Os (on any column or any line)

- each line and each column contains as many Xs as Os.

Every puzzle has a unique solution.

Is it too easy for you? For additional challenges, increase difficulty level and board size.

If the screen size is too small to accurately make your moves, pinch to zoom in.

Good luck!

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