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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 [[Arts#: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] and , [[Arts#: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> .
| <fentt border="double" style="font-size:24pt">8/k7/3p4/p2P1p2/P2P1P2/8/8/K7</fentt>
'''[[Test-Positions|Up one level]]'''
[[Category:Marcel Duchamp]]
