New puzzle: 'Mosaic'.

This is similar in concept to Minesweeper, in that each clue tells you
the number of things (in this case, just 'black squares') in the
surrounding 3x3 grid section.

But unlike Minesweeper, there's no separation between squares that can
contain clues, and squares that can contain the things you're looking
for - a clue square may or may not itself be coloured black, and if
so, its clue counts itself.

So there's also no hidden information: the clues can all be shown up
front, and the difficulty arises from the game generator choosing
which squares to provide clues for at all.

Contributed by a new author, Didi Kohen. Currently only has one
difficulty level, but harder ones would be possible to add later.

1 files changed, 11 insertions, 0 deletions

diff --git a/html/mosaic.html b/html/mosaic.html
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+Mosaic
+<p>
+Colour every square either black or white.
+Each number indicates how many black squares are in the 3&times;3 square
+surrounding the number &#8211; <em>including</em> the clue square
+itself.
+<p>
+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. You can left- or right-drag to set multiple
+squares at once.