RattateChess

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RattateChess, (RattateChess Nosferatu) 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 RattateChess is announced to be superseded by its successor under development, RattatAjedrez, written in much cleaner code, with focus on automatic tuning of evaluation features and search parameters.

=Description=

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 control 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=
 * RattatAjedrez

=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 1.0 Nosferatu in CCRL 40/4

Misc

 * Rat from Wikipedia
 * Rattata - Wikipedia.it
 * Rattata - List of Pokémon - Wikipedia

Nosferatu

 * Nosferatu (disambiguation) from Wikipedia
 * Nosferatu (word) from Wikipedia
 * John Zorn - The Stalking, Nosferatu (2012), YouTube Video
 * feat.: Rob Burger, Bill Laswell, Kevin Norton


 * Nosferatu A Symphony of Horror by F. W. Murnau 1922, YouTube Video
 * based on Bram Stoker's novel Dracula. Max Schreck as Count Orlok

=References= Up one level