puzzles: refactor and resync with upstream

This brings puzzles up-to-date with upstream revision
2d333750272c3967cfd5cd3677572cddeaad5932, though certain changes made
by me, including cursor-only Untangle and some compilation fixes
remain. Upstream code has been moved to its separate subdirectory and
future syncs can be done by simply copying over the new sources.

Change-Id: Ia6506ca5f78c3627165ea6791d38db414ace0804

1 files changed, 0 insertions, 15 deletions

diff --git a/apps/plugins/puzzles/html/keen.html b/apps/plugins/puzzles/html/keen.html
deleted file mode 100644
index bd0eb3644d..0000000000
--- a/apps/plugins/puzzles/html/keen.html
+++ /dev/null
@@ -1,15 +0,0 @@
-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.