A second technique to make things easier is to select you starting points well. When you begin to take notes you can start at any point in the puzzle. You can go left to right top to bottom or any other way that you may feel will bring you the answers you’re looking for. However, since taking notes may become the most daunting park of solving the puzzle you may want to minimize how much notes you have to take. One tip to do this is to always look at the longest chains of known numbers first. For example if a row has 6 out of 9 numbers already given then there can only be 3 possible answers in that row. Compare the possible answers in row with the known numbers in the associated columns and squares to further reduce the number of possibilities. By doing this you increase the chance of finding the answer or reducing the possibilities to no more than two answers.

One final tip I have for beginners is to continuously audit yourself as you go. The earlier in the puzzle solving process you make a mistake the harder it becomes to correct it. A quick way to audit yourself is to look at each row column and square as you solve them. It is very easy and only takes a second to run down the numbers and say “1,2,3,4,5,6,7,8,9 yup there all there”, then it is to track down the mistake at the end. One mistake will result in a chain of mistakes as you progress through the puzzle.

Typically finding the correct answers becomes increasingly more difficult as you progress through the puzzle. Finally, you will “Autopilot to the finish”. At some point you will be over the hump and the remaining answer will be self-fulfilling. Each time you find an answer it will eliminate 1 of 2 possibilities in another box therefore revealing the next answer. This will continue allowing you to quickly complete the puzzle. The real challenge in Sudoku is the piece in the middle which is overcoming the “Hump”. As you gain proficiency in the game you will progress through the puzzle fairly quickly only slowing down around the top of the hump.

Sudoku although a simple puzzle will challenge your logic and reasoning skills. These puzzles offer you a varying degree of difficulty. Some of the more difficult puzzles may even require skill beyond what’s laid out here. You can also add your own degree of difficulty to the puzzle. Try to see how fast you can complete the puzzle or try solving it without taking any notes. Yes, with the right combination of techniques you can solve even the most difficult puzzle without taking any notes. If you follow along, I will break these techniques down for you in future posts. May all your puzzles be challenging and worth of your time!

We wish you a lot of fun with our Sudoku! Please, share this address with your friends! All the puzzles are generated thanks to our algorithms except the evil sudoku with 17 initial values that have been collected by Gordon Royle and The University of Western Australia! More information about their work.. This page and sudoku have been made fully responsive so that you can play on all your devices.

Free-sudoku.com : Sudoku community in English

Carresmagiques.com : Sudoku community in French

Easy Sudoku