Engine Updates

Deuterium 11.01.28.159 (WB)
Win32
- fixed minor bugs in null move pruning conditions
- fixed minor bug in null move pruning verification search
- improve SEE x-rays
- added LMR in root search
- added LMR on capture moves
- added aggressive depth reduction in LMR for non-capture moves
- added IID on non-pv nodes
- modify IID on pv nodes
- implemented searching hash move first before generating other moves
- added Time_Increment_Factor option in deuterium.ini file to reduce increments
in seconds when used in cutechess-cli interface playing against uci engines
- improve move ordering for generate_evasion routine
- improve code readability
"Probably 15-25 elo better than previous version"
http://sites.google.com/site/deuteriumengine/

Chess News

Olivier Deville's PGN collection
also a Polyglot book based on the 43,216 PGN games
"Games from 2001 to 2011"
- minimum Elo = 2530
- only long time control games
- no annotations
- no computer games
- no games under 20 moves
http://www.open-aurec.com/chesswar/download.html

XBoard News Page
by HG Muller
- Browsing for file and path names (XB)
- Filtering files by extension (XB)
- Sending instant ICS commands (XB)
http://hgm.nubati.net/news.html#tag-A6 (new section)
http://hgm.nubati.net/news.html#tag-A7 (new section)
http://hgm.nubati.net/news.html#tag-C4 (new section)

Down/Problem Chess Websites

Bearded homepage down for 54 days
Damas homepage down for 2 days (no response in 60 seconds)
Frenzee homepage down for 229 days (purposely down until new engine release)
Pyotr homepage down today (no response in 60 seconds)
Sorgenkind homepage down for 95 days
Typhoon homepage down for 21 days (no response in 60 seconds)
Usurper homepage down for 94 days (no response in 60 seconds)
Ridderkerk engine info pages back up

Wiki Changes

GUI Protocol List
update by Norbert Raimund Leisner
- added miIGU (UCI Chess GUI)
http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:gui_protocol_support_list

Bonus Notifications (recent releases of free stuff)

Warnings:

- do not install unwanted toolbars, etc.
- alpha releases have new features; crashes and bugs are to be expected
- beta releases have new features; they may contain bugs or crash
- release candidate software may contain minor bugs; crashes are rare

Firebird ODBC/JDBC Driver 2.0
open source drivers for Firebird database for Win32/64 & Linux32/64
http://www.firebirdsql.org/index.php?op=files&id=odbc

Vala/Genie software for Windows
Windows builds of software for the Vala/Genie languages
- Val(a)IDE 0.7.1: IDE for Vala/Genie languages for Windows
http://live.gnome.org/Vala (Vala language page)
http://live.gnome.org/Genie (Genie language page)
http://code.google.com/p/vala-win32/downloads/list (download)

WordPress 3.1.1
free, popular, open source website/blog creation using PHP & MySQL w/ many plugins & themes
http://wordpress.org/ (homepage)
http://wordpress.org/news/2011/04/wordpress-3-1-1/ (announcement)

Meaning of Colors

Red = New or Warning
Green = Updated
Gray = Info Only

Engine List: http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:chess_engine_list
Chess News: http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:chess_news_list

NOTE: If you want me to track a website for you, please email me and I will add it.
ron _at_ computer-chess _dot_ org