Smash

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Smash, (Deep Smash) an UCI compliant open source chess engine written by Maurizio Sambati in C++, distributed under the terms of the General Public License. Smash played the CIPS 2004, CCC 2005, CIPS 2005, CIPS 2007 Italian Computer Chess Championships.

=Description= Smash is a bitboard engine and uses rotated bitboards with 256 line occupancy states to generate sliding piece attacks. While earlier WinBoard versions used MTD(f), since 1.0 the Iterative deepening framework calls a principal variation search. Structured exception handling is used to catch terminate- and timer exceptions thrown elsewhere. Selectivity is applied with adaptive null move, futility- and delta pruning, check- and one reply extensions. A capture entering the pawn endgame is extended by two plies. Beside moves from the transposition table, and MVV-LVA for captures, move ordering is controlled by killer- and history heuristic. Evaluation determines positional aspects with piece-square tables, and considers pawn structure, king safety and various positional piece terms.

=Deep Smash= Version 1.0 has been rewritten from scratch. Dubbed Deep Smash - it performs a parallel search using threads, applying ABDADA with a shared transposition table.

=Photos= CCC 2005: Fabio Cavicchio (Delfi) and Maurizio Sambati - Smash

=Forum Posts=
 * Has anyone ever heard of an engine called Smash? by bigo, CCC, December 27, 2007
 * Re: interested in making single proccesor program multi by Alessandro Scotti, CCC, December 29, 2007
 * Smash (single-CPU/SMP) by Maurizio Sambati by Norbert Raimund Leisner, CCC, August 31, 2008
 * Last Smash version? (for the RWBC chronology) by Günther Simon, CCC, May 10, 2016

=External Links=

Chess Engine

 * Deep Smash 1.0.3a - Chess Programs
 * Smash « G 6
 * Smash 1.0.3 in KCEC

Misc

 * smash - Wiktionary
 * smashing - Wiktionary
 * smash - Wiktionary.simple
 * The Smashing Pumpkins - I Am One (1990), YouTube Video

=References= Up one Level