What's New

Stability improvements

App Description

Dr. Sudoku

Sudoku originally called Number Place, is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution.

Completed puzzles are always a type of Latin square with an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same row, column or in any of the nine 3×3 subregions of the 9x9 playing board.

SUD Inc.

iPhone Screenshots

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Dr. Sudoku screenshot 1 Dr. Sudoku screenshot 2

iPad Screenshots

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Dr. Sudoku screenshot 3 Dr. Sudoku screenshot 4

App Changes

  • November 30, 2019 Initial release
  • July 15, 2020 New version 1.13
  • August 06, 2021 New version 1.14
  • October 04, 2023 New version 1.17