Mini Sudoku answer. #457

Solved mini-sudoku board for puzzle 457. The complete text solution follows below.

Every row of numbers

Rows and columns below start at 1, from the top left.

Dark numbers are original givens; grey numbers complete the solution. Heavy outlines mark the six regions.

  1. Row 1: 1, 2, 6, 3, 4, 5.
  2. Row 2: 4, 3, 5, 2, 6, 1.
  3. Row 3: 3, 1, 4, 6, 5, 2.
  4. Row 4: 5, 6, 2, 1, 3, 4.
  5. Row 5: 2, 5, 3, 4, 1, 6.
  6. Row 6: 6, 4, 1, 5, 2, 3.

Why it works

Every row, column and outlined region contains the digits 1 to 6 exactly once. The completed grid keeps every original given in place.

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