25,161
edits
Changes
KPK
,no edit summary
==KPK is won==
* Stronger king defends '''all''' [[Stop squareSquare|stop]] and [[Pawn Spans#StopandDistantStop|telestop(s)]], including the [[Promotion Square|promotion square]] up to three squares. With defender to move, one has to consider whether the pawn can be captured, since defended stop square does not necessarily imply the pawn is defended as well. Additionally, there is a [[Stalemate|stalemate]] [https://en.wikipedia.org/wiki/Key_square#An_exception exception] with the knight pawn.
* Defending king is (leaves after moving) outside the [[Rule of the Square#TheSquareofthePawn|square of the pawn]] <ref>[[King Pattern#SetwiseRuleoftheSquare|Set-wise Rule of the Square]] with [[Bitboards]]</ref>
: if the own king blocks the [[Pawn Spans|frontspan]], it is still won. However the defending king may further reach the "square of the pawn" due to the extra [[Tempo|tempo]] and one needs to apply some more rules to avoid knowledge holes in that cases.
==1990 ...==
* [[Guy Haworth]], [[Meel Velliste]] ('''1998'''). ''[http://centaur.reading.ac.uk/4569/ Chess Endgames and Neural Networks]''. [[ICGA Journal#21_4|ICCA Journal, Vol. 21, No. 4]]
* [[Ulrich Thiemonds]] ('''1999'''). ''Ein regelbasiertes Spielprogramm für Schachendspiele''. [https://en.wikipedia.org/wiki/University_of_Bonn University of Bonn], [https://en.wikipedia.org/wiki/Diplom Diplom] thesis, [httphttps://www.iai.uni-bonn.de/~idb/diplomarbeiten/thiemonds99.ps.gz zipped ps], [http://idb.informatik.uni-bonn.de/publications/da/da_thiemonds_1999.pdf pdf] (German) <ref>[http://idb.informatik.uni-bonn.de/publications/DA Diploma Theses — IDB]</ref> <ref>[http://www.iai.uni-bonn.de/~idb/ehemaligedipl.html Uni Bonn - AG Intelligente Datenbanken - Was sind intelligente Datenbanken?]</ref>
=Forum Posts=
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=70815 Eucalyptus - KPK Bitbases Generator] by [[Toni Helminen]], [[CCC]], May 24, 2019
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=70942 The Poor Man's KP Bitbase] by [[Dennis Sceviour]], [[CCC]], June 07, 2019
==2020 ...==
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=77499 Syzygy bases from memory] by [[Ed Schroder|Ed Schröder]], [[CCC]], June 16, 2021 » [[Syzygy Bases]]
=External Links=
