NSNA Sports & Fitness Committee

Presents

  Tailored Sudoku Challenge  

Challenge Format

1. Every week (On Saturday - 2 PM EST / 11 AM PST) 2 puzzles will be shared in whatsapp group as excel files or pictures with reference game numbers.
2. Participants can create a local copy of the puzzle by printing or downloading the file to edit or copy the numbers to excel/google sheets, manually solve it according to rules and responding to the solution in whatsapp group either as excel files or clear pictures referencing the game numbers prior the following Tuesday - 10 PM PST.
   Please note, only answers shared prior the time mentioned will be considered.
3. Answers will be reviewed and points will be awarded for every unique correct answer for each puzzle
   1st correct answer - 25 points
   2nd correct answer (must be different from 1) - 20 points
   3rd correct answer (must be different from 1&2) - 15 points
   Rest of unique answers (must be different from all other) - 10 points
   
   Kindly note, for every week, only 1 correct answer per puzzle per participant will be considered for awarding points (i.e) If participant submits 2 unique answers for same puzzle and even if both are correct, only the 1st correct response from the participant will be considered and awarded points according to the order the answer is received. The 2nd response will not be considered for awarding points to the same participant for the same puzzle. However the 2nd response for same puzzle may help other participants to fetch points.
4. By end of 6 weeks, top 3 participants with highest points will be awarded with trophies

Challenge Rules

1. Each puzzle will be 6 X 9 grids (6 rows, 9 columns)
2. Rows: Each horizontal row must contain the numbers 1 through 9 without repetition and sum of each row should be equal to 45
3. Columns: Each column can have any numbers 1 through 9 without repetition and sum of each column should be greater or equal to 25.
4. 2 X 3 subgrids: The grid is divided into nine (2 X 3) blocks, and each of these blocks can contain the numbers 1 through 9 without repetition and sum of each grid should be greater or equals to 25
5. No cell in the grid can be blank or cannot have number 0 or cannot have number greater than 9
6. Starting numbers: Some cells are pre-filled to give you a starting point and these numbers should not be changed from its position.
7. The puzzle is considered solved when the entire grid is filled according to the rules.
   
   Note: Unlike regular sudoku grids (9 X 9) where it is mandatory for each column to have numbers 1 through 9, our challenge is tailored to (6 X 9) grids and have only 6 rows, so it is not mandatory to have all 1 to 9 numbers for each column / each sub grids (2 X 3) and it can have any numbers between 1 to 9 but the condition is, it should not be repeated within the column and should not be repeated within the sub grids

Example Puzzle

Sample Solution 1 for Example puzzle according to rules

Sample Solution 2 for Example puzzle according to rules