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The depiction by Ōkyo shows the tiger family crossing a river, with the mother carrying one cub across the river at a time. This depicts a puzzle equivalent to the puzzle of the wolf, goat, and cabbage, asking how the mother can do this without leaving the leopard cub alone with any of the other tiger cubs. [9]
Well-known river-crossing puzzles include: The fox, goose, and bag of beans puzzle, in which a farmer must transport a fox, goose and bag of beans from one side of a river to another using a boat which can only hold one item in addition to the farmer, subject to the constraints that the fox cannot be left alone with the goose, and the goose cannot be left alone with the beans.
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 move across a river, with some constraints. [3]
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.
Crossing the Drake Passage is much, much more benign than it used to be thanks to the accuracy of modern forecasting models and stabilizers on more modern cruise ships.
Union Pacific Railroad, Big River Crossing Bike/Pedestrian Trail 1916 35°07′45″N 90°04′33″W / 35.12917°N 90.07583°W / 35.12917; -90.07583 ( Harahan Bridge
This is a list of bridges and other crossings of the Connecticut River from its mouth at Long Island Sound upstream to its source at the Connecticut Lakes.The list includes current road and rail crossings, as well as ferries carrying a state highway across the river.
Henderson Bridge (Ohio River) CSX Transportation: Union Township and Henderson: 1932 Bi-State Vietnam Gold Star Bridges: US 41: Evansville and Henderson (crosses the river entirely within the state of Kentucky at this point) 1932, 1965