What is the fastest hard Sudoku?

A Sudoku Master from China Wang Shiyao solved 9x9 sudoku grid in 54.44 seconds at the World Sudoku & Puzzle Championship held in Prague. However...

What is the fastest easy Sudoku ever recorded?

The Guinness World Record for the fastest solve of a 'Very Easy' level Sudoku is held by American player Thomas Snyder. He completed the puzzle in a blazing 1 minute and 23.93 seconds!

What is the hardest possible Sudoku?

The puzzle is called the Miracle Sudoku and it's made by fellow puzzle legend Mitchell Lee. And here are the special rules: “Any two cells separated by a knight's move or a king's move (in chess) cannot contain the same digit. Any two orthogonally adjacent cells cannot contain consecutive digits.”

Who is the best player in Sudoku?

Of the 15 championships held so far, Kota Morinishi of Japan (2014, 2015, 2017 and 2018) has been the most successful winner with four individual titles, over Thomas Snyder of United States (2007, 2008 and 2011), Jan Mrozowski of Poland (2009, 2010 and 2012) who have each won three.

What is the biggest Sudoku ever?

The largest multi-sudoku puzzle consists of 280 sudoku grids and was achieved by Timeintermedia, Inc., Sugakubunka Co., Ltd., Wakara Co., Ltd. and Dwango Co., Ltd. (all Japan) in Chofu, Tokyo, Japan, on 7 October 2018. The attempt was taken place as a part of a math event called MATH POWER since 2016.

Making a Hard Sudoku really easy

Is Sudoku high IQ?

From this case study it can be concluded that an individual who is skilled at solving Sudoku puzzles likely has a high general IQ. The results of the weak correlation between Sudoku scores and the WAIT test indicates that in some cases a high Sudoku doesn't necessarily mean a high general IQ.

Is there 16 * 16 Sudoku?

16 x 16 sudoku puzzles work just the same as regular 9 x 9 sudoku puzzles, but they are, well, a lot bigger! Infact whereas a normal sudoku has 81 squares in it, a 16x16 sudoku has 256 squares in it, so you get a lot more puzzle for your money.

Who is the Indian record of Sudoku?

Rohan Rao, who goes by the name vopani, is an Indian sudoku and puzzle solver, widely considered as the best sudoku solver of India. He is the reigning Indian Sudoku Champion and Times of India Sudoku Champion.

Who is the Sudoku player of India?

Of the 15 national championships held so far, 9 have been won by Rohan Rao, 3 by Ritesh Gupta, 2 by Rishi Puri and 1 by Prasanna Seshadri. The latest ISC was held on 12 December 2021 and was won by 9-time champion Rohan Rao. The national teams have been representing India at the World Sudoku Championship since 2007.

Who is the father of Sudoku?

Sudoku Puzzle Creator Maki Kaji Dies At 69 Known as the "Godfather of Sudoku," Kaji created the puzzle to be easy for children and others who didn't want to think too hard.

Is there 0 in Sudoku?

The cool thing about this enigma is that only two possible answers can fill each blank: zero and one—and each grid has a sole solution.

Is Sudoku good for the brain?

Sudoku keeps your brain active and reduces the risk of Alzheimer's, a most common cause of dementia that affects a person's thinking and behavioural skills. Stimulates your mind: The game works on your logical thinking process as you are absorbed in solving a puzzle and eventually improve your number skills.

What is Sudoku Killer level?

Hard Killer Sudoku levels have the same rules as any other level, the only difference is very few numbers on the grid from the beginning. This makes the game pretty hardcore and requires longer playing time to fill out all the numbers.

Which Sudoku Solver is fast?

Backtracking algorithm is the fastest algorithm to solve sudoku puzzles, It is by far the fastest compared to the other two methods. Also, let's note that each algorithm was faster with harder problems than with easier problems.

Is 6 minutes good for Sudoku?

5 minutes is more than enough time to jump start your brain, re-evaluate your Sudoku strategy, and develop a new perspective on how to view the Sudoku grid. So “take 5” and give yourself a new chance at solving Sudoku puzzles!

Is Sudoku an Indian game?

However, the modern Sudoku only began to gain widespread popularity in 1986 when it was published by the Japanese puzzle company Nikoli under the name Sudoku, meaning "single number".

Which country invented Sudoku?

The game first appeared in Japan in 1984 where it was given the name “Sudoku,” which is short for a longer expression in Japanese – “Sūji wa dokushin ni kagiru” – which means, “the digits are limited to one occurrence.” Sudoku continues to be highly popular in Japan, where people buy over 600,000 Sudoku magazines per ...

What is the original name of Sudoku?

The first modern Sudoku puzzle with the rules and constraints that we recognize today was published in 1979 by Dell Magazines under the name of “Number Place” and was invented by Howard Garns, a retired architect and freelance puzzle maker. Garns died in 1989, before Sudoku became a worldwide success.

Why is Killer Sudoku called that?

History. Killer sudoku puzzles were already an established variant of sudoku in Japan by the mid 1990s, where they were known as "samunamupure." The name stemmed from a Japanized form of the English words "sum number place." Killer sudokus were introduced to most of the English-speaking world by The Times in 2005.

Is Sudoku 1 9?

Sudoku is defined by Merriam-Webster as a 9-by-9 grid puzzle in which the grid is divided into 3-by-3 boxes. Every row, column and box must contain the numbers one through nine, no repeats.

What is Sudoku rule of 1?

Rule 1 - Each row must contain the numbers from 1 to 9, without repetitions. The player must focus on filling each row of the grid while ensuring there are no duplicated numbers. The placement order of the digits is irrelevant. Every puzzle, regardless of the difficulty level, begins with allocated numbers on the grid.

What is the rule of 3 Sudoku?

If three candidates can be found in only the same three Cells of a region (Row, Column or Square), then one of these candidates is the solution for the first of these Cells, a second one is the solution for the second Cell and the last candidate is the solution for the third Cell.

Can Sudoku have 2 answers?

A well-formed Sudoku puzzle is one that has a unique solution. A Sudoku puzzle can have more than one solution, but in this case the kind of logical reasoning we described while discussing solving strategies may fall short.

Is Sudoku evil hard?

The goal is to fill the grid, so that each row, column, and 3x3 block contain all the digits from 1 to 9 without repeating. But in Evil Sudoku, there are much fewer numbers on the grid at the beginning. There's going to be only 4 or even fewer numbers. This fact makes the evil sudoku level extremely difficult to solve.