Re: Sudoku puzzle
- To: mathgroup at smc.vnet.net
- Subject: [mg58758] Re: Sudoku puzzle
- From: "Dr. Wolfgang Hintze" <weh at snafu.de>
- Date: Sun, 17 Jul 2005 13:03:06 -0400 (EDT)
- References: <d9r4vd$560$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Having found this thread on sudoko only after it was "finished", I still have two (related) questions: (i) how to provide a partially filled-in sudoku such that the solution is uinique? (how many positions must be filled in, and which) (ii) how is the degree of difficulty (simple, average, hard) of a sudoku defined Both questions must have been answered internally by the magazines providing sudokus. Regards, Wolfgang Mike Honeychurch wrote: > Many readers would be aware that Sudoku is a puzzle (craze) that has > recently appeared in many major newspapers around the world as a regular > puzzle. > > (See http://www.sudoku.com and http://www.sudokufun.com/ > > An open source sudoku project exists with a Java applet available at > sourceforge: http://sudoku.sourceforge.net/) > > Mathematica in Education and Research would like to issue a challenge to the > Mathematica community to create a Mathematica version of Sudoku: a package > that both creates Sudoku puzzles and solves them (either totally within a > notebook or via the GUI interface). > > Please submit your Sudoku version as an article for Mathematica in Education > and Research describing the code and the (presumed?) challenges faced and > overcome in writing the code. > > Michael Honeychurch > Mathematica in Education and Research > http://www.ijournals.net > >