Ninety Today : John Roycroft

Arthur John Roycroft
Arthur John Roycroft

We are delighted to offer Arthur John Roycroft best wishes on his ninetieth birthday, this day (July 25th) in 1929.

The Chess Endgame Study
The Chess Endgame Study

From Wikipedia :

In 1959 he was awarded the title International Judge of Chess Compositions.[1] In 1965 he founded EG, the first long-running journal exclusively for endgame studies.[2] Roycroft served as editor and publisher through 1991. The journal continues to be published, but under Dutch ownership (“ARVES”). Roycroft remained its chief editor until 2007 when Harold van der Heijden took over. His 1972 book Test Tube Chess (revised as The Chess Endgame Study, 1981) is considered one of the best English-language examinations of endgame studies.[2] He also served as the endgame study editor for the British Chess Magazine from 1973 to 1974.

Roycroft’s adaptation of the Guy–Blandford code in the 1970s resulted in the Guy–Blandford–Roycroft code, an efficient way to index endgame studies – or any chess position.[3] He also advised Ken Thompson in writing programs for endgame data bases with four and five pieces. For queen and pawn against queen some results were published by Roycroft in three booklets in 1986, years ahead of full tablebase output on CD.

Test Tube Chess
Test Tube Chess