To print multiple puzzles, there are special pages to print two, four, or six puzzles per page. Guessing is never required - but it may help! Each puzzle has a unique solution and can be solved with pure logic. The position is saved as 81 digits at the end of the URL string, with hyphens used for empty cells.Įxtreme Sudoku posts five new puzzles every day. There are 100 Sudokus per file, including the solutions. Instead of the numbers from 1 to 16 the characters from A to P are used. Every Sudoku has only one unique solution. To save any position, right-click on under the grid, and click Add To Favorites or Bookmark This Link. Here you can find Sudokus of size 16x16 for downloading and printing. You can add symbols too, such as question marks. My Hexadecimal Sudoku puzzles are collected in 100 printable booklets per volume. Each row, column and 4x4 block contains all the digits 0 thru F (or numbers from 1 to 16, in the decimal versions). If you prefer to enter your own pencilmarks, up to six digits can be entered in each cell. Hexadecimal Sudokus (also known as 16x16 Sudoku) are a larger version of regular Sudoku that feature a 16 x 16 grid, and 16 hexadecimal digits. These update by themselves as you solve particular cells and cannot be edited manually.
There are automatic pencilmarks that appear if you check the Pencilmarks box. So it's possible to have incorrect digits that don't conflict, but eventually you will get stuck. The Show Conflicts button does not apply the solving logic - just checks whether there are any conflicting digits already in the grid. However, there are many different ways to solve them. Note: For even more sudoku, see the 100 Free LARGE Sudoku Puzzles page. There is a link to the Solutions on the puzzle page as well. To print the puzzles use either the Print button below the grid, or if you want to print the pencilmarks as well, use the browser Print option under the File menu. Printable Sudoku 16×16 Puzzles If you’ve had any issues solving sudoku, you’re aware that there are numerous kinds of puzzles that are available and it’s hard for you to pick which ones to work on. On this page are 100 free sudoku puzzles I made that you can print out right now. See our guide to solution rules for hard sudoku puzzles.Īll the puzzles on this site rate a "fiendish" category, but then we picked the hardest, and graded them in five progressively more difficult categories: Evil, Excessive, Egregious, Excruciating, and Extreme, in order from least difficult to most difficult. Press Control+P to print out the puzzles. Click on one of the letters (A, B, C etc) in the difficulty you would like.
Difficulty depends on the type of steps required to solve them, and also on the number of each type of step. To view & print the printable Sudoku puzzles: Choose the number of puzzles you would like per page from the drop-down list. Solving these puzzles is a different matter entirely, since these are the most difficult puzzles we create. Each row, column, and 3 x 3 box must contain only one of each of the 9 digits. Just place the digits from 1 to 9 in each empty cell. Then try some of our very hard sudoku puzzles.