27.55.169.95: Sansa's Real Strength? (2013-08-30 12:59) [#9836]

I looked a few game of his without any deep analysis. His moves seem crude (not talking about opening ones here). I know this might disturb someone, and I am sorry. Did any modern professional estimate his real strength? I know he was the best of his time, but I doubt he can compete against, say, Iyama Yuuta or Chen Yaoye.

BTW, I'm a weak 4d.