Engine Updates

Arasan 15.3 (WB/UCI)
C++ source; own GUI, mp; Win32/64, Linux, Mac, Android; can use Gaviota ebtbs
- fix a bug in king cover calculation
- modify root LMR logic
- reduce memory usage for "makebook" utility by shrinking/packing structures
- fix "makebook" so it works on Linux
- improve makebook speed by optimizing Board::reset
- some tweaks to trade down scoring, especially to discourage trading down from a possibly winnable to a drawish endgame
- change hashtable replacement policy so exact hash code matches always replace existing entries
- main search probes q-search cache for a pv move if the main hash table does not provide one
- improved ordering of evasion moves
- add extra time to search if resolving a fail-high at the root
- thread limit raised to 64
- thread split depth is dynamic based on number of threads
- some code portability fixes, in particular fixing big-endian support
- "this version scores about 25 ELO higher than 15.2 in my testing"
http://www.arasanchess.org/

Dirty 08Apr2013 (WB)
Win32/64, Linux64
- silent update, version number unchanged
- more recompiles (yesterday's compiles were misnamed)
http://www.dirtychess.com/

NirvanaChess 1.0 (UCI)
new engine by Thomas Kolarik
Win32
http://nirvanachess.blogspot.com/

Chess News

Nothing new today

Down/Problem Chess Websites

Belofte homepage down for 31 days ("this site has been suspended")
ChestUCI homepage down for 26 days (a 110mb.com site)
Dolphin homepage down for 29 days (not found)
FreeChess homepage down for 3 days (a narod.ru site)
Ifrit homepage down for 3 days (a narod.ru site)
Igor Gorelikov Tools page down for 12 days (a 110mb.com site)
InmiChess homepage down for 26 days (no response in 60 seconds)
Mustang homepage down for 3 days (a narod.ru site)
OBender homepage down for 3 days (a narod.ru site)
Pyotr homepage down for 26 days (not found)
SDChess homepage down for 3 days (a narod.ru site)
SmarThink homepage down for 3 days (a narod.ru site)
Strelka homepage down for 3 days (a narod.ru site)
Toledo Nanochess homepage down for 26 days (a 110mb.com site)
Typhoon homepage down for 4 days (no response in 60 seconds)
Uralochka homepage down for 3 days (a narod.ru site)
WildCat homepage down for 3 days (a narod.ru site)

Wiki Changes

Private Engine List
update by Norbert Raimund Leisner
- removed NirvanaChess, it is now public
http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:private_engine_list

Mobile Chess List
update by Norbert Raimund Leisner
- added Generic Java MIDP 2.0
- added Generic Java MIDP 2.1
http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:mobile_chess_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

Flash Player 11.7.700.169
free cross-platform flash video player
http://www.adobe.com/

ICQ 8.0.6014
audio/video/text chat w/ connectivity to Facebook, Google+, Twitter, etc for desktop & mobile
http://www.icq.com/en

Malwarebytes Anti-Malware 1.75
free Windows anti-virus; detect and remove malware that others fail to detect
free version does *not* provide memory resident protection
http://www.malwarebytes.org/products/malwarebytes_free

Qt libraries 5.0.2
open source, cross-platform windowing system / GUI builder / C++ library; Windows package includes a Visual Studio add-in
http://qt.nokia.com/downloads

Tails 0.17.2
Debian-based Linux32 distro; GNOME desktop; #43 in popularity
distro has the goal of providing complete Internet anonymity for the user
https://tails.boum.org/

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