Engine Updates

Gray Matter 1604 (WB)
C++ source; this a source code update only
most recent exe files: 1572 (Win64), 1604 (Win32), and 1584(Mac)
- 1615: precompute single bit masks is faster
- 1616: a few bit manipulation changes + a few optimizations
- 1617: only check for insufficient material when the piece count is down
- 1618: last few commits made engine weaker. Reverting, will try again
- 1619: a mite fewer instructions
- 1620: saves a few more instructions
- 1621: a few mods for bit management and ply
http://code.google.com/p/gray-matter/updates/list

Plisk 0.2.6 (WB/UCI)
Win32/64, AMD64
http://sites.google.com/site/pliskchess/

Redqueen 0.5 (UCI)
1 commit(s) to the C++ source code (commits= 330), no new build
- 330: fixed hash prune condition
http://sourceforge.net/projects/redqueenchess

Chess News

Kvetka 3.6.2 Chess GUI (UCI)
Intended for game viewing and analysis; several plug-ins available; available in a portable version
- plugin 'Options' also updated
http://kvetka.org/en/

Down/Problem Chess Websites

Akiba homepage down for 3 days
Alex homepage down for 102 days
Amundsen homepage down for 107 days (Permissions problem)
Bearded homepage down for 23 days
Feuerstein homepage down for 42 days (probably dead)
Igor Gorelikov Tools homepage down for 6 days
MatMoi homepage down today
Pyotr homepage down for 6 days
Uragano homepage back up

Wiki Changes
Nothing new today

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

Foxit Reader 4.1
free pdf viewer. Faster render than Adobe, less bloat. Recommended.
http://www.foxitsoftware.com/pdf/reader/

GCstar 1.6.0
open source program for managing your collections of anything (coins, movies, etc.)
http://www.gcstar.org/ (homepage)
http://wiki.gcstar.org/en/gcstar_1.6.0 (1.6.0 page)
http://download.gna.org/gcstar/win32/ (download)

µTorrent 2.2 'Griffin' beta (build 20896)
open source BitTorrent client
this is a *beta* release
http://forum.utorrent.com/viewtopic.php?id=76840

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