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SudokuPower is your online sudoku resource.
Solve puzzles by completing the grid so that all rows, columns and boxes contain the digits 1 to 9.
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Sudoku at Wikipedia
To solve a sudoku puzzle: - Click an empty cell - Enter a number Until the puzzle is complete. Only valid numbers are accepted. The 'Level selector' is applied at clicking 'New puzzle' Clicking 'Hint' automatically fills one cell at random. Enter a ? (question mark) in a cell, to show/reveal the value for that specific cell. Click 'Verify' to highligh incorrectly entered cells. You can only get a hint when all entered cells are ok. Otherwise, incorrect cells are highlighted. Use 'Save puzzle' and 'Load puzzle' to save a puzzle in its current state and continue solving it at a later time. Please login to save and load your puzzles. You can save max. 15 puzzles. After that your oldest puzzle is deleted from your savelist. SudokuPower is provided 'as is', without warranty of any kind. Visits : 72587 Puzzles started : 28101
Wikipedia for sudoku
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Click loads puzzle
Click a level, then see 'Solver methods' for level info.
Required sudoku tactics for solving selected puzzle-level.
Apply basic constraints.
Find hidden singles.
Find candidates in row or column that intersect with subsquare.
Find hidden sets (e.g. double, triple) up to sets of 5.
Find naked sets (e.g. double, triple) up to sets of 5.
Find candidates in subsquare that intersect with row or column.
Find x-wing, swordfish, jelly-fish or squirmbag.
Find forced chains.
Guessing and backtracking.
Please select a hint.
Advanced puzzle search
SudokuPower has an excellent puzzle solver. Click -My Sudoku-, enter your puzzle, click -Show Solution- and find out!
I think you will find an endless supply of puzzles here, at any level you might appreciate.
Right-click anywhere on this page to open the quickmenu.
Enter a name for this puzzle
Immediately check validness
Use filler popup for cells
Undo last cell
Get all candidates
Clear all candidates
Reveal a random cell
Print this puzzle
String this puzzle
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