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'''[[Main Page|Home]] * [[Board Representation]] * [[Bitboards]] * [[Sliding Piece Attacks]] * Kindergarten Bitboards'''
[[FILE:Group_of_Masks.jpg|border|right|thumb|232px|link=http://www.imj.org.il/imagine/collections/item.asp?itemNum=194576| [[Arts#Klee|Paul Klee]] - Group of Masks, 1939 <ref>[http://www.imj.org.il/imagineen/collections/viewDataE5.asp194576?caseitemNum=Modern%20Art IMAGINE 194576 Paul Klee - The Group of Masks], from the [https://en.wikipedia.org/wiki/Israel_Museum Israel Museum's searchable collections database]</ref> ]]
'''Kindergarten''' bitboards <ref>[http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=5958 Magic Bitboards Explained!] by [[Michael Sherwin]] and reply by [[Gerd Isenberg]] to call it Kindergarten Bitboards, [[Computer Chess Forums|Winboard Forum]], December 4, [[Timeline#2006|2006]]</ref> , <br/>
was a kind of interactive forum development <ref>[http://www.open-aurec.com/wbforum/viewtopic.php?t=4523 Compact Bitboard Attacks] by [[Tom Likens]], [[Computer Chess Forums|Winboard Forum]], March 14, [[Timeline#2006|2006]]</ref> with a lot of meanders <ref>[https://www.stmintz.com/ccc/index.php?id=489834 rotated bitboards obsolete?] by [[Gerd Isenberg]], [[CCC]], February 26, [[Timeline#2006|2006]]</ref> . There were two issues involved - first to calculate the [[Occupancy of any Line|occupancy of any line]] from the [[Occupancy|occupied bitboard]] <ref>[https://www.stmintz.com/ccc/index.php?id=491079 Re: Some thoughts on Dann Corbit's rotated alternative] by [[Steffan Westcott]], [[CCC]], March 03, 2006</ref> - and second, compact and dense lookup tables. As a quintessence [[Gerd Isenberg]] came up with this nomination. It relies on fast 64-bit multiplication, but is otherwise quite resource friendly and a compromise between calculation and table-size.
