Rodent

on Sun Dec 25, 2011 11:18 am by **Steve.R** · on Sun Dec 25, 2011 11:18 am by **Steve.R**

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

on Fri Jan 13, 2012 4:58 pm by **Steve.R** · on Fri Jan 13, 2012 4:58 pm by **Steve.R**

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

on Thu Feb 16, 2012 1:12 am by **Steve.R** · on Thu Feb 16, 2012 1:12 am by **Steve.R**

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

on Sat Feb 18, 2012 12:00 pm by **Steve.R** · on Sat Feb 18, 2012 12:00 pm by **Steve.R**

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

on Thu Feb 23, 2012 2:03 pm by **Steve.R** · on Thu Feb 23, 2012 2:03 pm by **Steve.R**

Rodent 0.11 DM

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

on Thu Mar 01, 2012 11:54 am by **Steve.R** · on Thu Mar 01, 2012 11:54 am by **Steve.R**

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

on Fri Mar 02, 2012 6:19 am by **Steve.R** · on Fri Mar 02, 2012 6:19 am by **Steve.R**

Rodent 0.12 DM w64

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

on Sat Mar 03, 2012 8:33 am by jnhes · on Sat Mar 03, 2012 8:33 am by jnhes

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

on Sat Mar 03, 2012 8:35 am by jnhes · on Sat Mar 03, 2012 8:35 am by jnhes

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

on Sun Mar 25, 2012 8:28 pm by **Steve.R** · on Sun Mar 25, 2012 8:28 pm by **Steve.R**

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

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

on Mon Mar 26, 2012 10:22 pm by jnhes · on Mon Mar 26, 2012 10:22 pm by jnhes

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

on Thu Apr 19, 2012 3:26 pm by **Steve.R** · on Thu Apr 19, 2012 3:26 pm by **Steve.R**

Rodent 0.14

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

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

on Sun Apr 22, 2012 7:03 am by jnhes · on Sun Apr 22, 2012 7:03 am by jnhes

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

on Sun Apr 22, 2012 8:30 am by Bob · on Sun Apr 22, 2012 8:30 am by Bob

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)