Ncurses Sudoku System

Firsr of all, let me just say this, I suck at this game.

nsuds [1] is by far that I have seen the best one in the interface, or at least with serious-looking since it has "System" in its name.

5 difficulty settings / 30 levels. It times, and give you statistics and a summary after you solve it. [hjkl/arrows] or mouse, or many more, see the help. You can also mark numbers to help you see the numbers.

Unfortunately, even with the pencil-marking feature, it still took me nearly 8 minute to solve the easiest level. Yes, the recording is sped up by 8 times, or it'd be really boring 8 minutes.

$$$$#

* Since 2009-11-08 (pre v0.1b (2009-11-14)
* git-be4567947895c1be3e778489d99fa205e0448943 (2014-12-19, v0.7b (2010-04-21))
* In C with ncurses
* By Vincent Launchbury, et al.
* GPLv2