Yes, that's probably it, thank you. (There's a couple of brain cells in the back muttering that the page was less dense and tan colored, but I told them to shut up ;-)

Now let's sell tickets to some cage fights, for instance http://www.jsoftware.com/jwiki/Essays/Sudoku versus http://norvig.com/sudoku.html

P.S. The credit at the bottom of the J Sudoku piece led me here: http://www.vector.org.uk/ . Seems an interesting place to visit. It even features articles headed "APL is not for programmers" (quote: "At this point the average programmer turns off, drops out, gets his coat and leaves the building, heading for mom and the kids. We, on the other hand, will continue.")

If you want cage fights, you should also include the lean contender: http://nsl.com/k/sudoku/aw3.k

(I'll copy it here, because it's short enough for that:

  p,:3/:_(p:9\:!81)%3
  s:{*(,x)(,/{@[x;y;:;]'&21=x[&|/p[;y]=p]?!10}')/&~x}