![]() The same principle works for our brain functions, we need to train it to keep fit. If you want to stay fit, you have to work out or go to the gym. In his books on the working of the memory and brains, Gary Small, states that our brains age the same way our bodies age. The Memory Bible (2002) and Prescription (2004) Playing number puzzles such as Sudoku, Hidato and Numbrix strengthen your pattern solving abilities. We can replace the numbers with symbols, sounds, smells, situations, shapes and whatever. Improving your associative memory does not only improve your number analyzing skills. Solving Sudoku puzzles is more than numbers In other words: solving Sudoku's with elimination strategies rather than guessing make us smarter. The combination of logic and sequential thinking stimulate our associative memory skills. It is not necessary and even not wise to guess the position of the numbers. Sudoku is not a math puzzle but a logic and intelligence puzzle. Printable and easy for the eyes Sudoku puzzles. We figured out that instead of using our time to write them all down, we better focus on making There are literally hundreds of websites that have superb solving strategies and techniques for solving Sudoku puzzles. There are 2 sixes in our top right regions and this is. The regions and are the marked 3 by 2 areas (3 x 2 equals 6 numbers), whereas in a 9 by 9 grid the regions are 3 by 3 Similar to the row and column rules, each number must be filled in once in each region of a Sudoku grid. Numbers may only appear once in each region. 4! Please note that in case of a 9 by 9 grid, we have to fill in the numbers 1 to 9 in the rows, columns and regions.ģ. Which 2 is wrong? The 2 in position 5 is wrong and needs to be changed to a. Also this is not allowed, as we need to fill in the numbers 1 to 6 once in each row, column and region. Numbers may only appear once in each column. This is not allowed! The first one (in position 3) is wrong and should be a. In this example we have 2 ones in the first row. The numbers 1 to 6 must be filled in each row and column once. In whatever format are divided in rows, colums and regions (marked by a thick black line). Numbers may only appear once in each row. In his spare time he likes to program solutions to all kind of puzzles.1. Jeroen De Meyer is a Computer Science student from Belgium, with a great interest in logic. If you don't believe me try solving the above puzzle ( solution here) or visit .nf for more. As a result the list contained a lot of (really) hard Sudoku, much harder than the one my friend gave me. ![]() The second thing I noticed, is that although a Sudoku with lesser clues is not necessarily more difficult, the number of clues should to be taken into consideration when determining the difficulty of a grid. To give you an idea, if you'd solve one each day it would take you over 130 years to solve them all. ![]() The list of nearly 50,000 seemed to contain every possible, valid 17 clues Sudoku grid. Let's make a website that generates 17 clues Sudoku puzzles and solves them for you, when you're not able to.Īfter a lot of reading and coding, I launched .nf, a website where you can try to solve nearly 50,000 Sudoku with only 17 clues. 50,000 Sudoku with only 17 cluesĪs my friend's Sudoku also had 17 clues, I knew exactly what I wanted to do now. It took McGuire and his team 7 million core-CPU hours on a supercomputer (the equivalent of a single computer running for 7 million hours) and a year of actual elapsed time. The first thing I learned is that there's a minimum number of clues a Sudoku must have, and it's been proven by Professor Gary McGuire, a Mathematician from University College Dublin in Ireland, that this number is 17. So I started digging in the logic behind Sudoku puzzles. ![]() I don't know about you but I really don't like it when people tell me that I can't do something, especially when they're right. I've always liked puzzles but never really paid much attention to Sudoku, so when I tried to solve it, I had to admit he was right. Try out our free Sudoku puzzles on your iPhone or iPad!Ī couple of months ago, a friend of mine showed me a Sudoku puzzle and said 'You can't solve that one'. ![]()
0 Comments
Leave a Reply. |