This is a 2 round panel that pinpoints the terminal SNP below R1a-L664. This panel is suggested when you have tested L664+ or if you have a clear prediction for this haplogroup according to your Y-STR results.

In the first round 4 important SNPs will be tested to find out the main category:

S3479
S2894
S2869
YP282

In the second round the testing splits up depending on the results from round 1. We work down the branches iteratively until we have found your position on the given tree.

The test is completed when the unique phylogenetic position on the tree has been determined.

See this tree diagram to understand the groupings in this panel: