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Richard Webb. Three gods, three questions: The Hardest Logic Puzzle Ever. (New Scientist, Volume 216, Issues 2896–2897, 22–29 December 2012, Pages 50–52.) Tom Ellis. Even harder than the hardest logic puzzle ever. Stefan Wintein. Playing with Truth. Walter Carnielli. Contrafactuais, contradição e o enigma lógico mais difícil do mundo.
The gods will not answer any question until after all three have been posed, and will not answer any of the questions if the answers to any two imply the answer to the third. I have a more difficult version, too: You don't know the words 'da' or 'ja' - You only know that there exist translations of 'Yes' and 'No'.
An impossible puzzle is a puzzle that cannot be resolved, either due to lack of sufficient information, or any number of logical impossibilities. 15 Puzzle – Slide fifteen numbered tiles into numerical order. It is impossible to solve in half of the starting positions. [1]
The Zebra Puzzle is a well-known logic puzzle.Many versions of the puzzle exist, including a version published in Life International magazine on December 17, 1962. The March 25, 1963, issue of Life contained the solution and the names of several hundred successful solvers from around the world.
Like how 3+5 is the only way to break 8 into two primes, but 42 can broken into 5+37, 11+31, 13+29, and 19+23. So it feels like Goldbach’s Conjecture is an understatement for very large numbers.
A further complication is that the inhabitants may answer yes–no questions in their own language, and the visitor knows that "bal" and "da" mean "yes" and "no" but does not know which is which. These types of puzzles were a major inspiration for what has become known as " the hardest logic puzzle ever ".
SPOILERS BELOW—do not scroll any further if you don't want the answer revealed. The New York Times Today's Wordle Answer for #1272 on Thursday, December 12, 2024
(1968) First-Order Logic ISBN 0486683702 (1977) The Tao is Silent ISBN 0060674695 (1978) What Is the Name of This Book? The Riddle of Dracula and Other Logical Puzzles ISBN 0139550623 – knights, knaves, and other logic puzzles (1979) The Chess Mysteries of Sherlock Holmes ISBN 0394737571 – introducing retrograde analysis in the game of chess