Backgammon notation Similarly, 13/7*/5 denotes a move corresponding to a roll 6-2 and a checker moving from 13 to 5 hitting a checker at the in-between step at point 7. Moves resulting from double rolls are often indicated by placing the number of checkers moved in parentheses after the move. For example, the effect of a roll 2-2, could be: 6/4(3) 13/11. Finally, it is common to use the words "bar" and "off" to describe moves where checkers are entered from the bar or taken off during bear off. For instance bar/22 17/9, and 5/off 2/off. Backgammon notation Backgammon notation is a
The Upside of Down (book) strategies that protect food—and energy—supply networks and that can better cope with surprise." Several reviewers identified the book's ending as its weakness. Kymlicka wrote that "his discussion of what we should do in response to these challenges...[is] disappointing". Heft wrote that the book's weakness was in guessing what Heft called "fictional doomsday scenario[s]" because there are ultimately "an infinite number of possible destinies". The Upside of Down (book) The Upside of Down: Catastrophe, Creativity, and the Renewal of Civilization () is a non-fiction book published in 2006 by Thomas Homer-Dixon, a professor who at the time was the director of