so since people are sooo keen to show off their brains, i thought i'd give you a deviously hard puzzle this time! the last one MUST have been too easy. ok mensa-ites, kill it!
here are the rules again in case you forgot: fill the grid so that every column, every row and every 3x3 box contains the digits 1 to 9. the digits within the cells joined by dotted lines add up to the printed top left-hand figure. within each 'shape', a digit CANNOT be repeated. good luck!
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3 9 7 2 8 1 4 5 6
6 5 2 4 9 7 8 3 1
4 1 8 5 6 3 9 2 7
5 3 9 1 7 8 2 6 4
2 7 1 6 4 5 3 9 8
8 4 6 3 2 9 7 1 5
7 2 5 8 3 6 1 4 9
1 8 4 9 5 2 6 7 3
9 6 3 7 1 4 5 8 2
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