anhduc wiki 4

Problem of pain From Wikipedia, the free encyclopedia   (Redirected from The problem of pain ) Jump to navigation Jump to search Problem of pain can mean: the problem of evil , the central concern of theodicy The Problem of Pain , a book about that topic by C. S. Lewis The Problem of Pain , a science fiction novella by Poul Anderson from 1973 Disambiguation page providing links to topics that could be referred to by the same search term This disambiguation page lists articles associated with the title Problem of pain . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Problem_of_pain&oldid=974163561 " Categories : Disambiguation pages Hidden categories: Disambiguation pages with short descriptions Short description is different from Wikidata ...

Proof game From Wikipedia, the free encyclopedia Jump to navigation Jump to search This article uses algebraic notation to describe chess moves. A proof game is a type of retrograde analysis chess problem . The solver must construct a game starting from the initial chess position, which ends with a given position (thus proving that that position is reachable) after a specified number of moves. A proof game is called a shortest proof game if no shorter solution exists. In this case the task is simply to construct the shortest possible game ending with the given position. When published, shortest proof games will normally present the solver with a diagram - which is the final position to be reached - and a caption such as "SPG in 9.0". "SPG" here is short for "shortest proof game" and the "9.0" indicates how many moves must be played to reach the position; 9.0 means ...