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-rw-r--r--html/galaxies.html10
1 files changed, 7 insertions, 3 deletions
diff --git a/html/galaxies.html b/html/galaxies.html
index 8041a95..32e4e1d 100644
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Galaxies
<p>
-Draw lines along grid edges so as to divide the grid up into
-regions. Every region should have two-way rotational symmetry, and
-should contain exactly one dot which is in its centre.
+Draw lines along grid edges so as to divide the grid up into connected
+regions of squares.
+<p>
+Every region should have two-way rotational symmetry, should contain
+exactly one dot which is in its centre, and should contain no lines
+separating two of its own squares from each other. A region satisfying
+all of these requirements will be automatically highlighted.
<p>
Click on a grid edge to add or remove a line. Right-click on a dot
and drag the mouse to place an arrow in a grid square pointing to