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Rodent

descriptionRodent EmptyRodent

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Rodent Rodent10

Rodent is an open source chess engine by Pawel Koziol, derived from Sungorus by Pablo Vazquez.
http://www.koziol.home.pl/rodent.htm

descriptionRodent EmptyRodent 0.10

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Rodent 0.10 released

Changes:
- here comes a little hurried update, nothing spectacular, perhaps +30 Elo
- no "extern inline" rubbish
- KRK checkmate bug corrected
- simplified mobility evaluation
- late move pruning near the leaves
- static null move near the leaves

http://www.koziol.home.pl/rodent_0.10.zip

descriptionRodent EmptyRe: Rodent

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Rodent 0.11 released

Changes:
- two-tier aspiration window
- tuning of some eval parameters
- small part of history value (used for move sorting) is carried over from previous search
- bigfix of move generation cache

www.koziol.home.pl/rodent_0.11.zip

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A new web site for Rodent:
http://www.koziol.home.pl/rodent.htm

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Rodent 0.11 DM

* AMD and Intel PGO builds
http://kirr.homeunix.org/chess/engines/Denis%20Mendoza/

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Rodent 0.12
http://www.koziol.home.pl/rodent_0.12.zip

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Rodent 0.12 DM w64

* AMD and Intel PGO builds
http://kirr.homeunix.org/chess/engines/Denis%20Mendoza/

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Rodent 0.12 gcc JA (Win32, Linux 32/64)
http://dl.dropbox.com/u/5047625/rodent-012-gcc-ja.zip

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Rodent 0.12 (for 64-bit machines by Dann Corbit and Denis Mendoza)
http://www.koziol.home.pl/exe012.zip

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Rodent 0.13

Changes:
- fixed ugly time mangement bug, preventing Rodent from playing x moves in y seconds repeating
- new king safety evaluation, resulting in less boring games
- weakening mode (1200- 2600 Elo, untuned)
- a couple of eval additions and bugfixes

http://www.koziol.home.pl/rodent_0.13.zip

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Rodent 0.13 executables for 64-bit machines by Dann Corbit and Denis Mendoza
http://www.koziol.home.pl/exe013.zip

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Rodent 0.14

- retracted some harmful search and eval changes
- pawn phalanx bonus
- opening book support (see readme file for details)

http://www.koziol.home.pl/rodent_0.14.zip

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Rodent 0.14 DM x64 (Compiled by Denis Mendoza)

- AMD64 PGO build

http://kirr.homeunix.org/chess/engines/Denis%20Mendoza/rodent_0.14_dm.7z

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Code:

Games Completed = 500 of 500 (Avg game length = 28.067 sec)
Settings = RR/32MB/4000ms+200ms/M 700000cp for 7 moves, D 150 moves/EPD:E:\LittleBlitzer\openings.epd(4000)
Time = 3557 sec elapsed, 0 sec remaining

 1.  Rodent 0.10                 251.5/500   176-173-151     (L: m=173 t=0 i=0 a=0)   (D: r=129 i=11 f=10 s=1 a=0)   (tpm=233.1 d=12.0 nps=1027486)
 2.  Rodent 0.14                 248.5/500   173-176-151     (L: m=96 t=80 i=0 a=0)   (D: r=129 i=11 f=10 s=1 a=0)   (tpm=249.0 d=12.2 nps=970240)

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Rodent 0.15

Changes include:
- tweaks and bugfixes
- better evaluation of King's pawn shield
- tweaks in opening book code (including optionl verification by a short search and exclusion of infrequent alternatives)
- NEW primitive position learning algorithm (off by default)

http://www.koziol.home.pl/rodent_0.15.zip

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Rodent 0.15 DM x64
http://kirr.homeunix.org/chess/engines/Denis%20Mendoza/

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Rodent 0.16

- minor speed optimizations
- restructuring of options
- many bugfixes
- some new pruning
- better pawn shelter eval

http://www.koziol.home.pl/rodent_0.16.zip

descriptionRodent EmptyRodent - Engine - New

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New Rodent - Engine


Rodent 0.16

Link: Rodent 0.16 Windows 32 Bit wink


http://chesshilton.blogspot.com.br/2012/10/rodent.html

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Rodent 0.16 DM x64
mediafire.com ?3d33gdg4o1gmclo

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New Rodent page: http://www.pkoziol.cal24.pl/rodent/rodent.htm

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Pawel Koziol wrote:
It has been a busy year for me, including bad throat inflammation last January, starting a relationship, ending a relationship, moving to various parts of Warsaw 4 times, changing internet provider, making a streak of 26 tournament games without a loss and beating a couple of candidate masters in the process, suffering under the burden of translation of XVIIth century Latin letters etc. It didn't leave me much time for programming, so I decided to make an interim release of Rodent 0.17 as it is today. I don't expect a strength increase. New Rodent is available at:

http://www.pkoziol.cal24.pl/rodent/rodent.htm

changes include
- null reduction depth bugfix (spotted again by invaluable Kestutis Gasaitis)
- some tinkering with aspiration window
- candidate passers eval
- some bugfixes in checkmate eval and material eval

As usual, I have to wait for good people to supply me with 64-bit and Linux compilers.

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Jim Ablett wrote:

Ok, Here are my builds. Windows/Linux/Android 64/32 bit.

https://dl.dropbox.com/u/5047625/rodent-017-ja.zip
Mirror:
http://cl.ly/LvPJ/rodent-017-ja.zip

I also added the uci command 'movetime' so the Android compile would play in Aart Bik's 'Chess For Android' gui.

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Rodent 0.17 JA

- silent update, version number unchanged
- recompile of Win32 build

https://dl.dropbox.com/u/5047625/rodent-017-ja.zip

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Rodent 0.18

- rather embarassing bugfix in static exchange evaluation
- evaluation of hanging pieces (inspired by DiscoCheck - thx Lucas Braesch and long live open source)
- passed pawn eval taking into account blockage and control of the stop square (finally works!)
- improved time management (easy move and some safeguards triggered by extreme time shortage)
- marginally better move ordering (a side effect of quiescence search tt entries left after looking for an easy move)
- asm popcount for 32-bit architectures (5% speedup)

http://www.pkoziol.cal24.pl/rodent/rodent_download.htm

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Rodent 0.18 JA

Windows/Linux/Android 64/32 bit

https://dl.dropbox.com/u/5047625/rodent-018-ja.zip
http://cl.ly/MchB/rodent-018-ja.zip

Android direct link:
https://dl.dropbox.com/u/5047625/rodent-android-ja

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