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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
#213
medium
Maxi (12x12)
#213
hard
Samurai
#213
hard
Hyper
#214
hard
Mega (16x16)
#214
hard
Sudoku
#214
extreme
Sudoku X
#214
easy
Mini
#214
medium
Maxi (12x12)
#214
hard
Samurai
#214
hard
Hyper
#215
hard
Mega (16x16)
#215
hard
Sudoku
#215
extreme
Sudoku X
#215
easy
Mini
#215
medium
Maxi (12x12)
#215
hard
Samurai
#215
hard
Hyper
#216
hard
Mega (16x16)
#216
hard
Sudoku
#216
extreme
Sudoku X
#216
easy
Mini
#216
medium
Maxi (12x12)
#216
hard
Samurai
#216
hard
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