You should check the Any books on Ulf Andersson? thread:

http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1224009766

Question for the forum: where can I find annotated games in which Ulf Andersson plays Black?

Any endgame strategy book has a number of his wins as White from, say, the Catalan or QID. I've played through lots of those; now I've become curious as to how he played as Black.

There are some Symmetrical English games in Suba's Hedgehog book. But I can only think of one source that has annotated games against 1.e4 or 1.d4 — Kopec and Pritchett's _Chess World Title Contenders and their Styles_, which has four games with Ulf as Black.

I've played over some of his Black wins (and draws — lots of those) in a database. There are some recurring themes -- for example,  I've found that Ulf often goes into an endgame with a slightly worse position and sacrifices a pawn for greater piece (esp. rook) activity and a relatively easy draw. And in the late middlegame he often essays Petrosian-like defensive exchange sacrifices, again mostly for activity. In short, he does anything but retreat into a defensive shell.

But these are bare game scores — would like to have some master annotations to look at and compare my impressions.

Any suggestions are welcome — thank you.