Here are 10 of the most challenging puzzles in the world. You can handle it?

Intelligence is the most important thing that distinguishes humans from other animals. People used the mind to reach new heights in science and technology, but sometimes the mind games were not only eminently practical and utilitarian character: thus was born the many different puzzles to solve which have thoroughly "poraskinut brains".

Ten of them you will find the selection of the Site.

The world hardest Sudoku



One of the most popular varieties of crossword is Sudoku — a Japanese puzzle with numbers. Its principle is simple, so many fans are trying to create their own versions. In 2012, the year of the Finnish mathematician Arto inter has stated that it has developed "the world hardest Sudoku".





According to British newspaper "The Telegraph" if the simplest of the common variants of Sudoku on a scale of difficulty to designate as "1" and the most difficult of the popular to evaluate to "5", proposed by the mathematician variant drawn to "11".

The hardest logic puzzle There are three gods, A, B, and C, one of which is the God of truth, the other the God of lies and the third God of the case, and it is unclear who is who. The God of truth always tells the truth, God lies, deceives, and God can say something, and the other in an arbitrary order. You need to determine who each of the gods, asking three questions that can be answered with "Yes" or "no", each question is only one God. The gods understand the questions, but answer in their own language, which has the words "da" and "ja", but do not know which word means Yes and which no.

This puzzle authored by the American philosopher and logic, George Boulos was first published in the Italian newspaper "la Repubblica" in 1992-m to year. In comments to the mystery Boulos makes an important observation: each God can ask more than one question, but three more can be set.

The most difficult thing in the world sum-do-ku



One of the most popular varieties of Sudoku is sum-do-ku, also called "killer Sudoku". The difference is that in sum-do-ku is set to the additional number is the sum of the values in groups of cells, while the numbers contained in the group, must not be repeated. In the popular service of puzzles Calcudoku.org you can track the difficulty rating of the published tasks, one of them was sum-do-ku, which is shown here.

The most difficult "Problem recognition" of Bongard



This puzzle type was invented by the distinguished Russian cyberneticist, a founder of the theory of pattern recognition, Mikhail Moiseevich Bongard in 1967, the year he first published one of them in his book "the Problem of recognition". Wide popularity "problems of Bongard" found, when the famous American physicist and computer scientist Douglas Hofstadter mentioned them in his book "gödel, Escher, Bach: this infinite garland.

Two of the most difficult examples of such tasks are taken from Foundalis.com, the solution is you must find the rule, which correspond to the six images on the left page, but will not fit six pictures on the right.

The most difficult puzzle tracing-Doc



This kind of Sudoku is similar to sum-do-ku, but, first, to calculate the value of cells used in any arithmetic operations, not only addition, and secondly, the field can be a square of any size (the number of cells is not limited), and third, unlike Sudoku, there doesn't have to be cards from 1 to 9 in each square of 3×3. Such tasks developed by the Japanese math teacher Tetsuya Miyamoto.

Here you can try to deal with the most difficult tracing-Doc, which was published on Calcudoku.org 2 APR 2013. Only 9.6% of regular visitors of a resource was able to solve it.

The most difficult task from IBM" it is Necessary to develop a system of information storage, which would encode 24 bits of information on eight discs in four bits each, provided that:

• Eight 4-bit disks United by a 32-bit system, in which any function from 24 to 32 bits can be computed in no more than five mathematical operations from the set {+, -, *, /, %, &, |, ~}.
• After failure of any two drives out of eight, you can restore these 24 bits of information.

On the website of the company "IBM" has a regular column "Consider this!", in which, since 1998, the year published interesting logical problems. Given here the problem is one of the most difficult.

The hardest puzzle Kakuro



Kakuro puzzles combine elements of Sudoku, logic, crosswords and basic mathematical operations. The goal is to fill the cells with digits from one to nine, and the sum of the digits in each horizontal and vertical block must agree with the specified number, and the numbers inside a single block should not be repeated. For horizontal units correct amount is recorded immediately to the left, and for vertical units — top.

This example is one of the greatest challenges Kakuro taken from the popular resource dedicated to puzzles Conceptispuzzles.com.

One of the objectives of Martin Gardner

Amazonaws.<url> the American mathematician Martin Gardner is the author of the many and varied tasks and puzzles. One of the most interesting of his works — calculates the number that requires the least number of steps to reduce it to a single digit by multiplying the digits of that number. For example, the number 77, you will need four of these step: 77 — 49 — 36 — 18 — 8. The number of steps Gardner calls "a number of fortitude.

The minimum number with the number of resistance equal to one — 10, for the number of resistance 2, it will be 25, the smallest number with a persistence of 3 — 39, if the resistance number is 4, the fewest for him to be 77. What is the smallest number with the number of resistance 5?

The most interesting challenge of the game of go



Go was invented in China more than 2.5 thousand years ago, so this is one of the most ancient games on Earth. Despite relatively simple rules, it still attracts thousands of people to solve interesting strategic objectives. The goal is to fence the stones of his color more territory than the opponent. Pictured above situation is one of the most difficult in the history of th: in its decision the experienced players spent more than 1 thousand hours of playing time. How the party can win black?

Most difficult of puzzles Fill-A-Pix



Fill-A-Pix was invented by the English mathematician Trevor Truran. This game is similar to the well-known "Minesweeper": a player needs, guided solely by logic, to determine which cells should be painted and which will remain empty until the rest of the image. As one cell is influenced by several key values, to obtain the final image will take some time.

Above you can see the puzzle Fill-A-Pix, prepared by the staff of the resource Conceptispuzzles.com where you can find many variations of this game and other interesting tasks.

via factroom.ru