Train your brain with sudoku puzzles

Are you ready to train your brain? play a sudoku game, with a total of 6,670,903,752,021,072,936,960 solutions. Can you solve all of these sudoku? Install this game now and train your brain.

Sudoku is a logic-based puzzle. It is a type of constraint satisfaction problem, where the solver is given a finite number of objects (the numerals 1-9) and a set of conditions stating how the objects must be placed in relation to one another. The puzzle consists of a 9×9 grid further divided into nine 3×3 sub-grids.

Main Feature:
- Comes in 5 levels of difficulty, namely fast, easy, normal, difficult, and evil. Suitable for beginners to experts.
- Pencil mode
- Highlight same number, prevents you from repeating numbers in the same row or column.
- Remaining numbers, display the remaining numbers below the number pad.
- Export as PDF, export the sudoku board as a pdf if you want to print it.

Rules for playing sudoku:
- Look for the easy play first: When you first start to play a Sudoku puzzle, look for where you have the easiest opportunities to add a number. Usually this is where there is a crowded square or a row that is almost full of numbers. Sometimes, especially on the Easy-rated Sudoku puzzles, you can quickly use process of elimination to figure out where to place a number.
- Look for which numbers are missing: Sudoku is about placing numbers where they don’t already exist – it’s a logical process of elimination. If a number already exists in a row or square, then that number cannot be placed again. Your challenge is to keep thinking and looking and spotting opportunities to add numbers where they haven’t already been placed.
- Don’t guess: Sudoku does not require guesswork. If you aren’t sure if a number belongs in a certain spot, you’re better off not guessing.
- Keep moving: Sudoku rewards the “roving eye” – if you feel stuck, don’t concentrate too hard on one part of the puzzle grid.

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