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 map

Colour the map with four colours, so that no two adjacent regions have the same colour. (Regions touching at only one corner do not count as adjacent.) There is a unique colouring consistent with the coloured regions you are already given.

Drag from a coloured region to a blank one to colour the latter the same colour as the former. Drag from outside the grid into a region to erase its colour. (You cannot change the colours of the regions you are given at the start of the game.)

Right-drag from a coloured region to a blank one to add dots marking the latter region as possibly the same colour as the former, or to remove those dots again.