# 40 - Determinant Sudoku

Determinant Sudoku



Classic Sudoku rules apply.
Each number in a square is the determinant of the underlying 2×2 array, i.e. the result of the operation [(top left) times (bottom right)] minus [(top right) times (bottom left)].


Solve on Penpa: https://tinyurl.com/26xu7ly5

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#52 - Slow Thermo Overlapping Sudoku

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 Slow Thermo Overlapping Sudoku Apply classic Sudoku rules on each of the two overlapping 3×3 grids. Along each thermometer, digits do not decrease: starting from the bulb end, each digit is higher than or equal to the previous one. Solve on Penpa: https://tinyurl.com/27s73xk9
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