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This is a list of puzzles that cannot be solved. An impossible puzzle is a puzzle that cannot be resolved, either due to lack of sufficient information, or any number of logical impossibilities. Kookrooster maken 23; 15 Puzzle – Slide fifteen numbered tiles into numerical order. It is impossible to solve in half of the starting positions.
List of unsolved problems may refer to several notable conjectures or open problems in various academic fields: Natural sciences, engineering and medicine
Word problem for groups This page was last edited on 20 December 2021, at 13:07 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.
Auto-antonym: A word that is encoded with opposing meanings. Absurdity; Excusable negligence: If a behavior is excusable, it is not negligence. Gödel's incompleteness theorems: and Tarski's undefinability theorem; Ignore all rules: To obey this rule, it is necessary to ignore it. Impossible object: A type of optical illusion.
This article is a list of notable unsolved problems in computer science. A problem in computer science is considered unsolved when no solution is known or when experts in the field disagree about proposed solutions.
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The Magic Words are Squeamish Ossifrage: Solved in 1993–1994 1983 Decipher: Solved [1] 1986 Decipher II: Partially solved (all 4 ciphertexts solved between 1985 and 1986, but the solution to the 4th ciphertext has since been lost) [2] 1987 Decipher III: Unsolved [2] 1990 Kryptos: Partially solved (3 out of the 4 ciphertexts solved between ...