Did You Know?

The maximum number of givens in a Sudoku that still leaves the rest logically deducible (no trivial completion) can exceed 77.

Did You Know?
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3
6
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1
9
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8
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8
1
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7
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7
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8
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9
Mathematical Mind

"In mathematics you don't understand things. You just get used to them." — John von Neumann

Mathematical Mind