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According to the renowned Pawn Endings expert Ilya Maizelis, Emanuel Lasker composed this study and presented it in a series of conferences held in the USA in 1901. The position with White and Black Kings at a3 and a8 respectively, was published in the Manchester Evening News by Lasker.
The same year, Augustus Reichhelm published a similar study in the Chicago Tribune. Reichhelm’s position was with White and Black Kings at a1 and a7 respectively, which improve the theoretical value of Lasker’s original position.
Maizelis who asked Lasker himself about this story, reports that Lasker claimed paternity of that study and admitted to have met Reichhelm in 1904 in Philadelphia where Reichhelm showed him his improvement.
Consequently, this position does not seem to result directly from a game between Lasker and Reichhelm, although it is not clear whether it could result from analyses from such a game. Another point to be elucidated is whether Reichhelm heard about Lasker’s study and merely improved it, or independently composed his own study from personal analyses based on a position from a presumable although unknown game between both players.
Source : Finales de Pions, Editions Hatier (1982), p218
—Preceding unsigned comment added by 92.156.87.4 (talk) 23:36, 26 June 2010 (UTC)
This page gives a lot of examples with the corresponding square numbers already filled in. It gives exactly zero explanation of how to fill in those numbers. Useless to someone who doesn't already know the subject. — Preceding unsigned comment added by 72.74.211.222 (talk) 16:52, 13 October 2012 (UTC)