[WIP] Port of Simon Tatham's Puzzle Collectionpuzzles

Original revision: 5123b1bf68777ffa86e651f178046b26a87cf2d9

MIT Licensed. Some games still crash and others are unplayable due to
issues with controls. Still need a "real" polygon filling algorithm.

The following games are at least partially broken for various reasons:

Cube:     crash with certain settings
Galaxies: crash
Inertia:  crash
Keen:     input issues
Loopy:    weird stuff happens
Map:      crash on input
Mines:    weird stuff happens on target
Palisade: input issues
Signpost: crash on input
Solo:     input issues
Towers:   input and drawing issues
Train Tracks: drawing issues
Twiddle:  weird animation on target
Undead:   input and drawing issues
Unequal:  input and drawing issues
Untangle: input issues

All in all, about 40% of the games are at least partially broken.

Change-Id: I7c69b6860ab115f973c8d76799502e9bb3d52368

1 files changed, 15 insertions, 0 deletions

diff --git a/apps/plugins/puzzles/html/keen.html b/apps/plugins/puzzles/html/keen.html
new file mode 100644
index 0000000..bd0eb36
--- /dev/null
+++ b/apps/plugins/puzzles/html/keen.html
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+Keen
+<p>
+Fill in the grid with digits from 1 to the grid size, so that every
+digit appears exactly once in each row and column, and so that all
+the arithmetic clues are satisfied (i.e. the clue number in each
+thick box should be possible to construct from the digits in the box
+using the specified arithmetic operation).
+<p>
+To place a number, click in a square to select it, then type the
+number on the keyboard. To erase a number, click to select a square
+and then press Backspace.
+<p>
+Right-click in a square and then type a number to add or remove the
+number as a pencil mark, indicating numbers that you think
+<em>might</em> go in that square.