Monday, May 23, 2011

The Vienna Defense Line in Scheerer - Kopylov Revisited

Last week ChessBase celebrated its 25th anniversary by offering a 25% discount on its products for one day. I've used ChessBase from its earliest days, but have been getting by with version 9 for several years. Rather than risk waiting another 25 years for 50% off, I decided to go ahead and pick up version 11.

I'm glad I did.

One nice feature in 11 is something the CB folks call "novelty annotation." In earlier versions, CB would identify a new move, a novelty, in an observed game by checking the game against a reference database installed on your computer's hard drive. Now CB 11 checks a huge online database and inserts the appropriate line(s) in the game on your screen. And it does this very quickly, usually in a matter of seconds.

I tried this feature on the Scheerer-Kopylov game I posted recently, a line in the Vienna Defense that Scheerer had included through White's 19th move in his book. ChessBase came back extending Scheerer's line several moves, and providing a White win which split from Scheerer on move 22.

So here's another look at the Scheerer-Kopylov game with the new line from Leisebein-Jacobs, getting a jump on the attack down the h-file with 22.Rh3.