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Railroad Switching Puzzle
Train shunting puzzles, also often called railway shunting puzzles or railroad switching puzzles, are a type of puzzle. Shunting puzzles usually consist of a specific track layout, a set of initial conditions (typically the starting place of each item of rolling stock), a defined goal (the finishing place of each rolling stock item), and rules which must be obeyed while performing the shunting operations. There are often constraints such as making the minimum number of couplings and uncouplings, or making the minimum number of junction direction changes, or completing the puzzle within a specified time limit. Other important factors may include the lengths of tracks limiting the number of rolling stock vehicles which can be placed along them. Some shunting puzzles allow certain types of rolling stock to navigate a particular section of track but not other types of rolling stock, for example a locomotive might not be allowed to pass below a low bridge whereas wagons are allowed, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sam Loyd Primitive Railroading Puzzle
Sam, SAM or variants may refer to: Places * Sam, Benin * Sam, Boulkiemdé, Burkina Faso * Sam, Bourzanga, Burkina Faso * Sam, Kongoussi, Burkina Faso * Sam, Iran * Sam, Teton County, Idaho, United States, a populated place People and fictional characters * Sam (given name), a list of people and fictional characters with the given name or nickname * Sam (surname), a list of people with the surname ** Cen (surname) (岑), romanized "Sam" in Cantonese ** Shen (surname) (沈), often romanized "Sam" in Cantonese and other languages Religious or legendary figures * Sam (Book of Mormon) Sam is a minor character in the early part of the Book of Mormon narrative. He is the third son of Lehi and the older brother of Nephi, the narrator of the Book of Mormon's first two books. Sam is almost always allied with Nephi in conflicts wit ..., elder brother of Nephi * Sām, a Persian mythical folk hero * Sam Ziwa, an uthra (angel or celestial being) in Mandaeism * Shem#In Islam, Sam, Shem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
