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How to Play Noos Sudoku
Fill the grid so every row, column, and bold box contains each number exactly once.
Standard:
Uses numbers 1β9 in a 9x9 grid.
Mini:
Uses numbers 1β6 in a 6x6 grid. Perfect for a quick mental reset.
Sudoku X:
The two main diagonals (marked by a subtle highlight) must also contain each number exactly once.
Hyper Sudoku:
Features 4 extra shaded inner 3x3 regions that must also contain numbers 1β9 uniquely.
Maxi (12x12):
Uses digits 1β9 plus values A, B, and C in 3x4 rectangular blocks.
Mega (16x16):
The ultimate test. Uses digits 1β9 plus values A to G in giant 4x4 blocks.
Use the 'Notes' mode to pencil in possibilities if you get stuck.
Got it!
4,000 Puzzles
All Modes
Classic (9x9)
Mini (6x6)
Sudoku X
Hyper Sudoku
Maxi (12x12)
Mega (16x16)
Samurai (21x21)
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Mini
#258
medium
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#258
medium
Hyper
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hard
Maxi (12x12)
#258
hard
Mega (16x16)
#258
hard
Samurai
#258
hard
Sudoku
#259
easy
Mini
#259
medium
Sudoku X
#259
medium
Hyper
#259
hard
Maxi (12x12)
#259
hard
Mega (16x16)
#259
hard
Samurai
#259
hard
Sudoku
#260
easy
Mini
#260
medium
Sudoku X
#260
medium
Hyper
#260
hard
Maxi (12x12)
#260
hard
Mega (16x16)
#260
hard
Samurai
#260
hard
Sudoku
#261
easy
Mini
#261
medium
Sudoku X
#261
medium
Hyper
#261
hard
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