Hikaru no Go has no overt BL (it was a Shonen Jump series so don't expect much), not in the generic sense. If anything the only BL up for interpretation is the relationship he holds with his rival Touya Akira (who I have always seen him being totally gay for). So if you're looking for something with hugs and kisses Hikaru No Go is way off the benchmark.
If you're looking for an entertainment, well plotted, well written story then Hikaru No Go is a must-watch anime.