publication . Article . 2005

Chess Endgame News

Guy Haworth;
  • Published: 01 Dec 2005 Journal: ICGA Journal, volume 36, pages 228-229 (issn: 1389-6911, eissn: 2468-2438, Copyright policy)
  • Publisher: IOS Press
  • Country: United Kingdom
The DTZ metric indicates the minimaxed 'Depth To Zeroing of the ply-count' for decisive positions. Ronald de Man's DTZ50' metric is a variant of the DTZ metric as moderated by the FIDE 50-move draw-claim rule. DTZ50'-depths are given to '50-move-rule draws' as well as to unconditionally decisive positions. This note defines a two-dimensional taxonomy of positions implicitly defined by DTZ50'. 'Decisive' positions may have values of (wins/losses) v =1/-1 or v = 2/-2. A position's depth in the new DTZ50' metric may be greater than, equal to or less than its DTZ depth. The six parts of the taxonomy are examined in detail, and illustrated by some 40 positions and 16...
free text keywords: Computer Science (miscellaneous), Human-Computer Interaction, Computational Mechanics, Computer Graphics and Computer-Aided Design, Ancillary data, Artificial intelligence, business.industry, business, Computer science, Chess endgame, Annotation
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