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A user mailed me today having found it less than clear from the docs that Galaxies will only accept a solution if the set of filled-in grid edges consists of _exactly_ the ones that separate two distinct regions, rather than consisting of _at least_ those and perhaps others which neither break rotational symmetry or disconnect any region.
16 lines
698 B
HTML
16 lines
698 B
HTML
Galaxies
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<p>
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Draw lines along grid edges so as to divide the grid up into connected
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regions of squares.
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<p>
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Every region should have two-way rotational symmetry, should contain
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exactly one dot which is in its centre, and should contain no lines
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separating two of its own squares from each other. A region satisfying
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all of these requirements will be automatically highlighted.
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<p>
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Click on a grid edge to add or remove a line. Right-click on a dot
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and drag the mouse to place an arrow in a grid square pointing to
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that dot, to indicate that you think that square must belong in the
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same region as that dot. Right-drag an existing arrow to move it, or
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drop it off the edge of the grid to remove it.
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