Solution to Sudoku no 462

Sudoku no 462 (Extreme)

Sudoku grader and solver

See answer

Solution to Sudoku no 461

Sudoku no 461 (Diabolical)

Sudoku grader and solver

See answer

Solution to Sudoku no 460

Sudoku no 460 (Tough)

This puzzle has a similar level of difficulty to the ones in my book.

Sudoku grader and solver

See answer

Solution to Sudoku no 459

Sudoku no 459 (Easy)

Sudoku grader and solver

See answer

Solution to Sudoku no 458

Sudoku no 458 (Diabolical)

Sudoku grader and solver

See answer

Solution to Sudoku no 457

Sudoku no 457 (Tough)

Sudoku grader and solver

See answer

Solution to Sudoku no 456

Sudoku no 456 (Diabolical)

Sudoku grader and solver

See answer

Solution to Sudoku no 455

Sudoku no 455 (Tough)

Sudoku grader and solver

See answer

Solution to Sudoku no 454

Sudoku no 454 (Easy)

Sudoku grader and solver

See answer

Solution to Sudoku no 453

Sudoku no 453 (Extreme)

Sudoku grader and solver

See answer

Solution to Sudoku no 452

Here is my original version of the solution:

...and here is another one from Kollona Misriyoon, a member of the Sudoku Puzzles Facebook group:

Sudoku no 452 (Extreme)

Solve online

Sudoku grader and solver

See answer