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'''[[Main Page|Home]] * [[Engine Testing]] * [[Test-Positions]] * Lasker-Reichhelm Position'''
composed by [https://en.wikipedia.org/wiki/World_chess_champion World Champion] [[Mathematician#EmanuelLasker|Emanuel Lasker]] and Gustavus Charles Reichhelm <ref>[http://www.chessarch.com/museum/draw/01_reichhelm.shtml Gustavus Charles Reichhelm from Chess Archaeology]</ref> in 1901, is most famous to solve with the method of [[Corresponding Squares|corresponding squares]]. It is also a test-position for the efficiency of [[Hash Table#SearchTables|search tables]], most notably the [[Transposition Table|transposition table]], where most of today's programs find the only winning move Kb1 with an appropriate (winning) score in less than one second. However, it is not recommended to tune [[Transposition Table#ReplacementStrategies|replacement schemes]] purely based on this position.
The Lasker-Reichhelm position, elaborated in 1932 by [https://en.wikipedia.org/wiki/Vitaly_Halberstadt Vitaly Halberstadt] and [[:Category:Marcel Duchamp|Marcel Duchamp]] in ''L'opposition et les cases conjuguées sont réconciliées'' (Opposition and Sister Squares are Reconciled) introducing corresponding squares <ref>[https://en.wikipedia.org/wiki/Vitaly_Halberstadt Vitaly Halberstadt], [[:Category:Marcel Duchamp|Marcel Duchamp]] ('''1932'''). ''L'opposition et les cases conjuguées sont réconciliées''.
Paris-Brussels 1932, German Edition 2001 ''[http://www.buecher-nach-isbn.info/3-608/3608500359-Opposition-und-Schwesterfelder-Marcel-Duchamp-Vitali-Halberstadt-3-608-50035-9.html Opposition und Schwesterfelder]'', ISBN 3-932170-35-0</ref> , was further mentioned 1941 in [https://en.wikipedia.org/wiki/Reuben_Fine Reuben Fine's] [https://en.wikipedia.org/wiki/Basic_Chess_Endings Basic Chess Endings] and is therefore well known as Fine #70 <ref>[https://en.wikipedia.org/wiki/Reuben_Fine Reuben Fine] ('''1941'''). ''[https://en.wikipedia.org/wiki/Basic_Chess_Endings Basic Chess Endings]''</ref> .
=See also=
* [http://www.talkchess.com/forum/viewtopic.php?t=36636 fine #70 revisited] by [[Robert Hyatt]], [[CCC]], November 08, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=57845 Position #70 from Fine's _Basic Chess Endings_] by [[Steven Edwards]], [[CCC]], October 05, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=60769 Is there a "correct" mate score for Fine#70?] by [[Vincent Tang]], [[CCC]], July 10, 2016* [http://www.talkchess.com/forum/viewtopic.php?t=65526 Transposition table and Fine#70] by [[Vincent Tang]], [[CCC]], October 23, 2017* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=69889 Strange draw scores when searching Fine#70] by [[Vincent Tang]], [[CCC]], February 12, 2019
=External Links=
