SUDOKU 1

The rules of Sudoku are very simple: place the numbers 1 to 9 into each row, column, and bold- lined 3×3 box. Each number must appear only once in any row, column or box.

See answer keys at the bottom

 52   84 
         
1  978  3
 47 23 9
  7   1  
6 31 94 5
7  314  8
         
 31   65 

DID YOU KNOW?
Your brain has about 100,000,000,000 brain cells, called neurons. If each neuron was a grain of sand, the sand would fill the average two-story house.

ANSWER KEYS

952631847
378245916
146978523
14752369
597463182
623189475
765314298
489526731
231897654

Source:

Moore, G. & Stafford, T. (2010). The Rough Guide Book of Brain Training. Rough Guides


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