Wednesday 25 August 2021

PUZZLE NO. 290 : IRREGULAR SUDOKU

 


RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and outlined region. Each outlined region is marked by thick borders.

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7 comments:

  1. 31:55. My scanning abilities are so terrible.

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    Replies
    1. It is a difficult one and yet you do not require any advanced strategies in this.

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  2. 18:11, the in and out rule plays an incredible role here.

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  3. 12:16. Made excellent use of the law of left overs as noted in the above comment. A tough but very nice construction.

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Puzzle No. 458: Sum Next to 9-Renban Sudoku

  Rules: Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 outlined box. Clue...