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Apr 12, 2016
[[toc]] **[[Home]] * [[Engines]] * Hagrid** **Hagrid**, a [[WinBoard]] and [[UCI]] compliant chess engine by [[Klaus Friedel]], written in [[Cpp|C++]], first released in March 2002, while the development started as recently as September 2001 <ref>[[http://www.friedelprivat.de/|Snitch and Hagrid two free UCI / Winboard chess engines]] - News & History</ref>. Hagrid is a [[Bitboards|bitboard]] engine and performs [[Rotated Bitboards]] to determine [[Sliding Piece Attacks|sliding piece attacks]], while its successor [[Snitch]] keeps the plain [[8x8 Board|8x8 board]] and [[Piece-Lists|piece-lists]], using [[Attack and Defend Maps|attack tables]] <ref>[[http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=171&start=21|Re: Attack table]] by [[Klaus Friedel]], [[Computer Chess Forums|Winboard Forum]], October 07, 2004</ref>. =Features= <ref>[[http://www.friedelprivat.de/|Snitch and Hagrid two free UCI / Winboard chess engines]] - Developer</ref> ==[[Search]]== * [[Iterative Deepening]] * [[Aspiration Windows]] * [[Alpha-Beta]] [[Principal Variation Search|PVS]] * [[Transposition Table]] * [[Selectivity]] ** [[Fail-High Reductions]] ** [[Null Move Pruning]] (R=2) ** [[Quiescence Search]] ** [[Futility Pruning]] ** [[Delta Pruning]] ** [[Static Exchange Evaluation]] * [[Move Ordering]] ** [[Killer Heuristic]] ** [[History Heuristic]] ** [[MVV-LVA|MVV/LVA]] ==[[Evaluation]]== * [[Material]] * [[Piece-Square Tables]] * [[Lazy Evaluation]] * [[Pawn Structure]] * [[Pawn Hash Table]] * [[King Safety]] * [[Automated Tuning|Tuning]] ==Misc== * [[Nalimov Tablebases]] =See also= * [[Various Classifications#Fiction|Fiction]] * [[Snitch]] =Forum Posts= * [[http://www.stmintz.com/ccc/index.php?id=220512|New engine "Hagrid"]] by [[Klaus Friedel]], [[CCC]], March 30, 2002 * [[http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=36625&p=138765|New Chess Engine "Hagrid"]] by Tony Worsman, [[Computer Chess Forums|Winboard Forum]], March 30, 2002 * [[http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=36651&p=138857|Hagrid new version]] by [[Klaus Friedel]], [[Computer Chess Forums|Winboard Forum]], April 01, 2002 * [[http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=36670&p=138931|Hagrid and Chessbase (Fritz 6) GUI]] by [[Roger Brown]], [[Computer Chess Forums|Winboard Forum]], April 03, 2002 ยป [[Fritz#FritzGUI|Fritz GUI]] * [[http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=36849&p=139701|Hagrid 0.7.2 available]] by [[Klaus Friedel]], [[Computer Chess Forums|Winboard Forum]], April 13, 2002 * [[http://www.stmintz.com/ccc/index.php?id=235751|Hagrid 0.7.45 released !]] by [[Klaus Friedel]], [[CCC]], June 16, 2002 * [[http://www.stmintz.com/ccc/index.php?id=320241|Re: ...a new Hagrid-version?]] by [[Klaus Friedel]], [[CCC]], October 08, 2003 * [[http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=45881&p=174271|New engine]] by [[Klaus Friedel]], [[Computer Chess Forums|Winboard Forum]], January 03, 2004 * [[http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=74&p=157|New engine Snitch 1.0.0]] by [[Klaus Friedel]], [[Computer Chess Forums|Winboard Forum]], September 28, 2004 =External Links= ==Chess Engine== * [[http://www.friedelprivat.de/|Snitch and Hagrid two free UCI / Winboard chess engines]] * [[http://kirr.homeunix.org/chess/engines/Norbert's%20collection/Hagrid%20%28Compilation%29/v0.6.32/hagrid/|Index of /chess/engines/Norbert's collection/Hagrid (Compilation)/v0.6.32/hagrid]] by [[Norbert Raimund Leisner]] hosted by [[Kirill Kryukov]] * [[http://kirr.homeunix.org/chess/engines/Norbert's%20collection/Hagrid%20%28Compilation%29/v0.7.47/hagrid/|Index of /chess/engines/Norbert's collection/Hagrid (Compilation)/v0.7.47/hagrid]] by [[Norbert Raimund Leisner]] hosted by [[Kirill Kryukov]] ==Misc== * [[https://en.wikipedia.org/wiki/Rubeus_Hagrid|Rubeus Hagrid from Wikipedia]] * [[https://en.wikipedia.org/wiki/Magical_creatures_in_Harry_Potter#Hagrid.27s_pets|Magical creatures in Harry Potter from Wikipedia]] =References= <references /> =What links here?= [[include page="Hagrid" component="backlinks" limit="30"]] **[[Engines|Up one level]]**