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Cinnamon

101 bytes removed, 11:59, 11 February 2021
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Four pre-calculated attack arrays containing attack bitboards on [[Ranks|ranks]], [[Files|files]], [[Diagonals|diagonals]] and [[Anti-Diagonals|anti-diagonals]]
were indexed by the square of the sliding piece, and the associated [[Occupancy|occupancy]] index of that line, determining the blockers affecting the attack set.
Rather than to get the occupancy index from [[Incremental Updates|incremental updated ]] [[Rotated Bitboards|rotated bitboards]] for each of the four line kinds,
Cinnamon extracts line occupancies into a dense index range using [[Occupancy of any Line#Using Multiplication|multiplication]] and shift right,
as mentioned in [[Flipping Mirroring and Rotating#DiagonalstoRanks|diagonals to rank]] or [[Flipping Mirroring and Rotating#FlipAbouttheDiagonal|flip about the diagonal]].
=Features=
<ref>[httphttps://cinnamonchessgithub.altervista.orgcom/gekomad/ cinnamon chess engine Cinnamon GitHub - open source gekomad/Cinnamon: C++ UCI chess engine]</ref>
==[[Board Representation]]==
* [[Bitboards]]
=External Links=
==Chess Engine==
* [http://cinnamonchess.altervista.org/ cinnamon chess engine - open source chess engine]* [https://github.com/gekomad/cinnamon gekomad/cinnamon · GitHub]* [http://www.g-sei.org/cinnamongekomad/ Cinnamon] « [[G 6]: C++ UCI chess engine]* [http://ccrl.chessdom.com/ccrl/404/cgi/compare_engines.cgi?family=Cinnamon&print=Rating+list&print=Results+table&print=LOS+table&print=Ponder+hit+table&print=Eval+difference+table&print=Comopp+gamenum+table&print=Overlap+table&print=Score+with+common+opponents Cinnamon] in [[CCRL|CCRL 40/4Blitz]]
==Misc==
* [https://en.wikipedia.org/wiki/Cinnamon Cinnamon from Wikipedia]
Retrieved from "https://www.chessprogramming.org/Special:MobileDiff/21853...23585"

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