Ian's Server

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Game: blackbox bridges cube dominosa fifteen filling flip flood galaxies guess inertia keen lightup loopy magnets map mines net netslide palisade pattern pearl pegs range rect samegame signpost singles sixteen slant solo tents towers tracks twiddle undead unequal unruly untangle Manual for unruly

Colour every square either black or white, in such a way that:

• no three consecutive squares, horizontally or vertically, are the same colour
• 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.