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'''Fridolin''',<br/>
an [[UCI]] and [[Chess Engine Communication Protocol|Winboard]] compliant [[:Category:Open Source|open source chess engine]] by [[Christian Sommerfeld]]<ref>prior to Version 3 also [[WinBoard]]</ref>, written in [[Cpp|C++]].
Fridolin had its over the board debut 2010 in [https://en.wikipedia.org/wiki/Kanazawa,_Ishikawa Kanazawa], where it played the [[WCCC 2010]] and [[WCSC 2010]] supported by book author [[Erdogan Günes]], and further played the [[DOCCC 2010]], running on four cores.
Fridolin '''2.0''', ready to play the [[WCCC 2015]] in [[Leiden University|Leiden]], was released in June 2015 along with the former private Kanazawa version Fridolin '''1.0''' <ref>[https://sites.google.com/site/fridolinchess/home Fridolin - Home]</ref>. With Fridolin '''3.0''' in December 2018, [[Scorpio Bitbases]] were replaced by [[Syzygy Bases]] via [[Syzygy Bases#Fathom|Fathom]], former [[WinBoard]] support was removed, and [[PolyGlot]] [[Opening Book]] support added.
=Etymology=
* [[Chess960]]
* [[Magic Bitboards]]
* [[Population Count|Automatic use of PopCount Instruction]] (>= Version 3)
* [[Parallel Search]]
** [[Alpha-Beta]]
** [[Principal Variation Search]]
** [[Null Move Pruning]]
** [[Principal Variation SearchLate Move Reductions]]** [[Late Move Reductions|LMR]] and [[Futility Pruning|futility pruning]]** [[Quiescence Search|Quiescence search]] with [[Static Exchange Evaluation|SEE]]
* [[Evaluation Function]]
** [[Piece-Square Tables]]
** [[Pawn Structure]]
** [[King Safety]]
* [[Nalimov Tablebases]]
* [[PolyGlot]] [[Opening Book]] (>= Version 3)
=Photos & Games=
* [https://en.wikipedia.org/wiki/Volkswagen_Type_147_Kleinlieferwagen VW Fridolin from Wikipedia]
* [http://www.mkb-berlin.de/untrwegs.htm Unterwegs mit Fridolin] (MKB 52 - Motorised draisine, German), [https://en.wikipedia.org/wiki/AG_M%C3%A4rkische_Kleinbahn AG Märkische Kleinbahn Berlin]
* [http://www.fridolins.ch/int/index.html Fridolin's Heritage] - [https://en.wikipedia.org/wiki/Play_with_Fire_(The_Rolling_Stones_song) Play with Fire], recorded in March 2017 at [https://www.soundfarm.ch/ Soundfarm], [https://en.wikipedia.org/wiki/Kriens Obernau], [https://en.wikipedia.org/wiki/YouTube YouTube] Video » [[Fire]]
: {{#evu:https://www.youtube.com/watch?v=4iA-Si9n7hw|alignment=left|valignment=top}}
=References=
[[Category:Open Source]]
[[Category:UCI]]
[[Category:Chess960]]
[[Category:Given Name]]
[[Category:Music]]
[[Category:The Rolling Stones]]
