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Binary (Takuzu)

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Color every square either black or white, in such a way that:
  • no three consecutive squares in a line, horizontally or vertically, are the same color
  • each row and column contains the same number of black and white squares.

Left-click in an empty square to turn it black, or right-click to turn it white. Click again in an already-filled square to cycle it between black and white and empty; middle-click to reset any square to empty.

Courtesy of Simon Tatham's Puzzle Collection via the MIT license.

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