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Update Information: August 17, 2009 (Updates)

by Ron @, Tuesday, August 18, 2009, 01:28

Security Warning: WildCat site
Firefox message: "This web site at igorkorshunov.narod.ru has been reported
as an attack site and has been blocked based on your security preferences."

What happened when Google visited this site?

"Of the 5 pages we tested on the site over the past 90 days, 4 page(s)
resulted in malicious software being downloaded and installed without user
consent. The last time Google visited this site was on 2009-07-31, and the
last time suspicious content was found on this site was on 2009-07-31."

Engine Updates

Update: Chesley the Chess Engine 262 (WB)
no build for this version yet
latest builds: 258(Win32), 241(Mac)
- Use exceptions rather than manually unwinding the stack when time is elapsed (259)
- Break out the case of searching the root into new function root_search (259)
- Implement mate distance pruning (259)
- Implement delta pruning (259)
- Compute pawn_counts and piece_counts incrementally rather than in Eval::Score (260)
- Fix bug in En Passant handling introduced in previous revision (261)
- Add assertion and debug output in in_check (262)
http://sourceforge.net/projects/chesley/

Update: Dirty ACCA 3 (WB)
- version of Dirty (EveAnn+Buzz) that played in the 2009 Third Annual World Computer Rapid Chess Championships
- new search, modified, debugged and tested by Fonzy Bluemers
- eval DLL is slightly modified
- tourney book by Christopher Conkie
http://www.dirtychess.com/

Update: Scorpio 2.2 (WB)
with C++ source code
- Improved parallel search.
- Separate eval cache and pawn cache for each thread. And now 4 entries are probed in TT instead of 2
- Modified pondering strategy (still needs some work..)
- Aggressive lazy evaluation (70% ! ). I don't do full evals during null moves -- This seems to help survival against fast searchers
- A few eval changes here and there
- Search with 0.75 * UNITDEPTH increment
- Book generation tool for Salvo
- New book lines by salvo for ACCA
- And last but not least, I have switched to a new testing methodology I mentioned above,
suggested by guys at Olivier's broadcast. Which reminds me that I am so bored without
the broadcasts nowadays. Wish you well Olivier!
http://wbec-ridderkerk.nl/html/details1/Scorpio.html (Leo)
http://dshawul.googlepages.com/home (homepage)

Info Only: Slibo
another 3 commits to the source code (commits = 131)
http://sourceforge.net/projects/slibo

Info Only: Down chess websites :-(
Averno site down for 22 days
Flux site down today
Pierre site down for 55 days
Posix ports & Polyglot pages (by Michel Van den Bergh) down today
Spin Chess (unreleased) site down today

Blitzer site back up :-)
Delphil site (down for 10 days) back up!
:-)

Chess News

No updates found :-(

Wiki Changes

GUI Protocol List
- added Chest as a secondary tool (mate-solver)
- added Popeye as a secondary tool (mate-solver)

Mobile Chess List
- added Hiarcs for iPhone/iTouch

Bonus Notification

Update: 7-Zip 9.06 beta
http://www.7-zip.org

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