Thomas Snyder, a fellow from Palo Alto, recently won the World Sudoku
Championship in India.
http://www.mercurynews.com/ci_9202513
The video interview there is nice. One of the puzzles was:
Goa
0 0 0 0 0 0 4 6 0
0 0 0 0 0 3 0 0 9
0 8 4 0 0 7 0 0 1
2 0 0 0 0 0 7 1 0
5 0 3 8 0 0 0 0 0
9 0 0 1 0 0 5 3 0
0 2 5 0 0 8 0 0 6
0 0 0 0 0 2 9 8 5
0 0 0 0 0 5 0 0 7
Using Roger's sudoku verb -
timex 'sudoku Goa'
0.00210184 25792
Now 2 milliseconds is a lot faster than the Champ - but I'm very
impressed that he could do it in 2 minutes and 26 seconds. In the
video, Thomas points out that computer generated puzzles tend to have
less charm than "hand set" ones - e.g. in the case of puzzle Gao
(which is the city in India where the competition was held), so named
because of the pattern -
' *'{~*Goa
**
* *
** * *
* **
* **
* * **
** * *
****
* *
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
