Thermo Sudoku

Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions.

Some thermometer shapes are placed in the grid. Digits are strictly increasing from the round bulb of the thermometer to each flat end.

Sudokus that no one can solve

Sudokus that no one can solve, not only including Sudokus which are very difficult but also those that no one has tried to solve.

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Today Sudoku

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Samurai Sudoku

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Sudokus with no one can solve

X Sums Sudoku

Classic Sudoku

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Extra Regions Sudoku

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Greater Than Sudoku

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Clone Sudoku

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Hybrid Sudoku ( X Sums + Consecutive )

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Hybrid Sudoku ( X Sums + Consecutive )

Kropki Sudoku

Hybrid Sudoku ( Consecutive Pairs + Sum Frame )

Consecutive Sudoku

Greater Than Kropki Sudoku

XV Sudoku

Consecutive Sudoku

Exclude Sudoku

Thermo Sudoku

MiniMax Sudoku

XV Sudoku

Count different Sudoku

Hybrid Sudoku ( X Sums + Greater Than )

Color Sudoku

Products Sudoku

Hybrid Sudoku ( Greater Than + Sum Frame )

Maximin Sudoku

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Thermo Sudoku

Sudokus that no one can solve