Knight's tour (v. 1.0)
Whole Group опубликовал приложение 2011-04-03
The earliest known references to the Knight's Tour problem date back to the 9th century. The Knight's Tour is a mathematical problem involving a knight on a chessboard. The knight is placed on the empty board and, moving according to the rules of chess, must visit each square exactly once. |
Бесплатно
|
English 16 (v. 1.0)
Whole Group опубликовал приложение 2011-03-30
English 16 a very nice puzzle invented in 1900 by the American Sam Loyd, also described as the greatest inventor of puzzles by Martin Gardner. |
Бесплатно
|
|