Satana 2.2.17 released

[stegemma]

The new release of Satana, with better implementation of null/aspiration windows, a little different evaluation function and other minor improvement.

It looks better in shorter time controls than before (such as 10 second per game, for sample) but it is a little stronger even in long time controls.

The link is always the chess page on my site:

http://www.linformatica.com

Thanks.