One of the games that comes along with newer Nokia phones (eg. Nokia 3210).

The purpose is to get a series of numbers to be in order by merely rotating them. E.g. turning this:
 2  7 12  8
 5  1 11 15
 6 14 13 10
 4  3 16  9
into this:
 1  2  3  4
 5  6  7  8
 9 10 11 12
13 14 15 16
the size of the game and the rotating field depend on the level:
+---------------------+
| Lvl | Gm.Sz | FldSz |
+-----+-------+-------+
|  1  |  3x3  |  2x2  |
|  2  |  4x4  |  2x2  |
|  3  |  5x5  |  2x2  |
|  4  |  6x6  |  2x2  |
|  5  |  4x4  |  3x3  |
|  6  |  5x5  |  3x3  |
|  7  |  6x6  |  3x3  |
+-----+-------+-------+
Currently, my highscore is 1430 - achieved at Level 2 (I've never solved Level 5-7 :-( )

It seems that the score is based on number of moves as well as the time it took to solve the game.

As a small present for all the fans of this game, I've made a cute little windows application - Rotation.exe - in Visual C++ - where you can play Level 1-4 and save your scores in two top 10s for every level (one for best times, one for best number of moves).

If you want it, email me: rune.nielsen@cern.ch

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