RattateChess

a Chess Engine Communication Protocol compliant open source chess engine by Maurizio Monge, written in C++, released under the GNU GPL, first announced in November 2002. RattateChess played a strong CIPS 2007, becoming fourth with 4/6. RattateChess Nosferatu played the I.G.W.T. 2013, where it lost from Gaviota in the round of sixteen. RattateChess is announced to be superseded by its successor under development, RattatAjedrez, written in much cleaner code, with focus on automatic tuning of evaluation features and search parameters. || toc =Description=
 * Home * Engines * RattateChess**
 * [[image:NosferatuShadow.jpg width="288" height="205" link="http://en.wikipedia.org/wiki/File:NosferatuShadow.jpg"]] ||~  || **RattateChess**, (RattateChess Nosferatu)
 * An iconic scene of [|Nosferatu] ||~  ||^   ||

Search
Using a 0x88 board representation, RattateChess performs NegaScout alpha-beta with null move pruning and threat extensions, transposition table and IID inside a fractional ply iterative deepening framework with 1/100 ply resolution. Beside quiescence search, further selectivity is realized by history reductions, futility pruning, recapture extensions, and single-reply extension.

Evaluation
The evaluation considers material through piece-square tables for knights and bishops, bishop pair, pawn structure addressing backward, isolated, doubled and passed pawns, development, square- and center control, rook on (semi) open files and seventh rank, and king safety through (half) open neighbored files, and king piece and piece attack tropism.

=See also=
 * Comics
 * Demonology
 * Fiction
 * Mammal

=Forum Posts=
 * [|New Chess Engine ?] by Benny Antonsson, Winboard Forum, November 13, 2002
 * [|Rattatechess 0.666 alpha windows build] by Jim Ablett, Winboard Forum, October 09, 2005
 * [|Rattatechess new version and website] by Alex Brunetti, CCC, February 24, 2010

=External Links=

Chess Engine

 * [|Public Git Hosting - rattatechess.git/summary]
 * [|RattatAjedrez]
 * [|Index of /chess/engines/Jim Ablett/RATTATECHESS] by Jim Ablett, hosted by Kirill Kryukov
 * [|Index of /chess/engines/Jim Ablett/+++ LINUX ENGINES ++/32 BIT/rattatechess-nosferatu] by Jim Ablett, hosted by Kirill Kryukov
 * [|Rattatechess] from WBEC Ridderkerk
 * [|RattateChess 1.0 Nosferatu] in CCRL 40/4
 * [|RattateChess 1.0 Nosferatu] in CCRL 40/40

Misc

 * [|Rattata - Wikipedia.it]
 * [|Rattata - List of Pokémon - Wikipedia]
 * [|Nosferatu (word) from Wikipedia]
 * [|Nosferatu from Wikipedia]
 * [|Nosferatu (disambiguation) from Wikipedia]
 * [|Rat from Wikipedia]

=References= =What links here?= include page="RattateChess" component="backlinks" limit="20"
 * Up one level**