Bill: Didn't this page used to exist? I'm getting confused.
Yup, but it hardly had any info (just a diagram with the 2 stones, a marked and said to be the most common anwser... :S) so I combined it with the SJ page and added some of the locations from the stats discussion... Reuven
I don't like how the title now says 3-4 and an extension. The page is a page for a position and surely 6-4 Tn 3-4 should also link here?