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River crossing puzzle. A river crossing puzzle is a type of puzzle in which the object is to carry items from one river bank to another, usually in the fewest trips. The difficulty of the puzzle may arise from restrictions on which or how many items can be transported at the same time, or which or how many items may be safely left together. [1]
The two solutions with the vertical axis denoting time, s the start, f the finish and T the torch. The bridge and torch problem (also known as The Midnight Train [1] and Dangerous crossing [2]) is a logic puzzle that deals with four people, a bridge and a torch. It is in the category of river crossing puzzles, where a number of objects must ...
The missionaries and cannibals problem, and the closely related jealous husbands problem, are classic river-crossing logic puzzles. [1] The missionaries and cannibals problem is a well-known toy problem in artificial intelligence, where it was used by Saul Amarel as an example of problem representation. [2] [3]
Wolf, goat and cabbage problem. Illuminated illustration depicting the wolf, goat and cabbage problem in the Ormesby Psalter, dating to 1250–1330. The wolf, goat and cabbage problem is a river crossing puzzle. It dates back to at least the 9th century, [1] and has entered the folklore of several cultures. [2] [3]
Design effort. low. Falsework required. No. A simple suspension bridge (also rope bridge, swing bridge (in New Zealand ), suspended bridge, hanging bridge and catenary bridge) is a primitive type of bridge in which the deck of the bridge lies on two parallel load-bearing cables that are anchored at either end. They have no towers or piers.
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List of crossings of the St. Lawrence River and the Great Lakes. List of crossings of the Saint Louis River. List of crossings of the Savannah River. List of crossings of the Snake River. List of crossings of the South Branch Potomac River. List of crossings of the St. Johns River. List of crossings of the Susquehanna River.
Clearance below. 120 feet (37 m) History. Opened. 1936. Location. The Bridge to Nowhere is an arch bridge that was built in 1936 north of Azusa, California, United States in the San Gabriel Mountains. It spans the East Fork of the San Gabriel River and was meant to be part of a road connecting the San Gabriel Valley with Wrightwood, California .