Engine Updates

Gaviota 0.83 (WB/UCI)
Win32/64, Linux32/64; mp; own egtbs
"compared to 0.80 (last release) and it is expected to be stronger (hopefully ~100 elo)"
- new binary books must be used (different from old format)
http://sites.google.com/site/gaviotachessengine/ (homepage)
http://sites.google.com/site/gaviotachessengine/Home/change-log (changelog)
http://sites.google.com/site/gaviotachessengine/download (download)

Chess News

Gaviota 0.83 for Android
"compared to 0.80 (last release) and it is expected to be stronger (hopefully ~100 elo)"
http://sites.google.com/site/gaviotachessengine/download (download)

Norm Pollock site
PGN & EPD Utility Suites and Opening Book PGN Databases
- removed program: cleanElo (use tagRemove instead)
- updated programs: embayes and embed (added override option)
http://www.hoflink.com/~npollock/chess.html

Winboard Alpha
- added support for tournament play
options:
-tf NAME (or -tourneyFile): the NAME of the tourney file you want to create or use.
-mm (or -matchMode): sets it running as soon as you OK the startup (Otherwise only after selecting Machine Match from menu)
-tourneyCycles N: number of cycles in the tourney (default 1)
-tourneyType N: 0 = round-robin (default), N>0 is (multi-)gauntlet
-defaultMatchGames N: games per pairing (also in Common Engine Options dalog)
-lgf NAME (or -loadGameFile): file with opening lines
-lgi N (or -loadGameIndex): opening line to use (-1 or -2 = step through all per 1 or 2 games)
-lpf NAME (or -loadPositionFile): file with start positions
-lpi N (or -loadPositionIndex): start position to use (-1 or -2 = step through all per 1 or 2 games)
-sgf NAME (-saveGameFile): file where the games are saved (also in Save Options dialog)
http://hgm.nubati.net/news.html#tag-D1 (info)
http://hgm.nubati.net/WinBoard-TM.zip (direct link)

Down/Problem Chess Websites

BabyChess homepage down for 17 days (404: page not found)
Darmenios homepage down for 3 days (no response in 60 seconds)
Frenzee homepage down for 250 days (purposely down until new engine release)
Grizzly homepage down for 10 days (homepage is moving)
MFChess homepage down for 4 days (no response in 60 seconds)
CSBoard homepage back up
DreamChess homepage back up

Wiki Changes

GUI Protocol List
update by Norbert Raimund Leisner
- updated Winboard version number
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

AVG Anti-Virus Free Edition 2011 (build 1325)
Free anti-virus, anti-spyware program with excellent protection for Win32/64
http://free.avg.com/us-en/download-avg-anti-virus-free (homepage)
http://free.avg.com/us-en/download.prd-afh (download)

CCleaner 3.06
free registry and file optimization/privacy/cleaning tool; thorough and effective: recommended
http://www.ccleaner.com/
http://www.piriform.com/blog/2011/4/26/ccleaner-v306 (announcement)

Ext JS 4 GPL
free version of the open source cross-browser JavaScript library for building rich internet applications
http://www.sencha.com/ (homepage)
http://www.sencha.com/products/extjs/ (info)
http://www.sencha.com/products/extjs/download/ (download)

Groovy++ 0.4.225 1.7.10
Groovy++ 0.4.225 1.8.0 RC 4
open source jvm language; it appears to be a superset of the Java language
this is an extension to the standard Groovy jvm language; it supports better runtime efficiency using static typing
- the 2nd set of numbers in the version refer to the parent Groovy version
http://code.google.com/p/groovypptest/downloads/list

Network Scanner 5.1.4
free multi-threaded IP, NetBIOS & SNMP scanner; scans for listening TCP/UDP ports &
displays shared network resource types
http://www.softperfect.com/products/networkscanner/

System Explorer 2.8.0
free; detailed info about tasks, processes, modules, startups, IE addons, uninstallers, windows, services, drivers,
connections and opened files; graphs monitor usage of system resources in real-time
http://www.systemexplorer.net/

WordPress 3.1.2
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-3-1-2/ (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