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All India Sudoku Championship Rules

📝How contest will be conducted📝

    Step 1: Empty format of the Sudoku Problem will be shared in the contestants group, 30 mins prior to the start time, 
    ex: problem format @ 10:30 AM if start time is 11:00 AM. You can either draw/print in advance.

    Step 2: Login 5 mins before the contest on AISC page (https://www.malsar.in/aisc)

    Step 3: Access the contest problem by click on respective tab on the AISC Page, at the time of the contest as per agenda.  
    The problem can be attempted by either Drawing on paper/ Take printout/ Attempt online (See demo video)

    Step 4: Solve the problem as quickly as possible and Submit the ‘Answer Key’ in left to right order, in the form is provided on the Round page itself.

⏳ Different type of Sudoku for Malsar Sudoku Championship ⏳

    For the Challenge various types of Sudoku problems can be used to challenge contestants' skills. Rules will be applicable on the basis of the problem provided.

    Rules for Different type of Sudokus are as follows:●
    ● 9x9 Sudoku: In a Sudoku Grid (9x9), each of the 9 blocks must contain all the numbers 1-9 within its squares. Each number can only appear once in a row, column, or box,

    ● 10X10 Sudoku: Each puzzle consists of a 10x10 Sudoku grid. The object is to fill all empty squares so that 1 to 10 appear exactly once in each row, column, and 5x2 box.

    ● 12X12 Sudoku: Each puzzle consists of a 12x12 Sudoku grid. The object is to fill all empty squares so that 1 to 12 appear exactly once in each row, column, and 4x3 box.

    ● 15x15 Sudoku: Each puzzle consists of a 15x15 Sudoku grid. The object is to fill all empty squares so that 1 to 15 appear exactly once in each row, column, and 3x5 box.

    ● 16x16 Sudoku: Each puzzle consists of a 16*16 Sudoku grid. The object is to fill all empty squares so that 1 to 16 appear exactly once in each row, column, and 4x4 box.

    ● Alphabet Sudoku: The goal is to fill the grid with the given letters such that no letter is repeated in any row, column, or 3x3 region, just like in classic sudoku.

    ● Jigsaw: The puzzle may contain regions of random (irregular) shape; this variant is called Jigsaw Sudoku.

    ● Outside Sudoku: It is a variation of the standard sudoku. Some digits are given outside the grid. These digits must appear in the first three cells in the corresponding direction

    ● Butterfly Sudoku is the variation of the original sudoku. The puzzle consists of four grids 9 x 9. The numbers must be placed correctly for all the four puzzle squares.


    ● Cross Sudoku has five merged grids. The numbers must be placed correctly for all the five puzzle squares.

    ● 2 Grid: 2-Grid Sudoku is an extension of classic sudoku and consists of two grids 9 x 9. The numbers must be placed correctly for both puzzle squares as per the classic sudoku rules.

    ● 3 Grid (Triple Doku): Consists of three grids 9 x 9. The numbers must be placed correctly for all puzzle squares.

    ● Flower Sudoku ("Musketry Sudoku") has five sudoku puzzles in layout, similar to Samurai Sudoku. However, these puzzles overlap each other much more than in Samurai. The center grid is fully covered by the remaining four sub-puzzles.

    ● 5 Grid Cross: Cross Sudoku has five merged grids. The numbers must be placed correctly for all five puzzle squares.

    ● Samurai Sudoku: It is one of the sudoku variations with overlapping sudoku grids. The puzzle consists of five grids, one in the centre and the other 4 overlapping each corner grid of the central one. This means that the numbers must be placed correctly for all five puzzle squares.

    ● Sandwich Sudoku contains extra numbers outside the grid. These extra clues indicate the sum of digits between 1 and 9 in the corresponding row or column.

    ● Consecutive Sudoku ("1-away Disallowed Number Place"), all the places where orthogonally adjacent cells are consecutive numbers have been specially marked.

    ● Non-Consecutive Sudoku no two adjacent cells have consecutive values. For example, if a cell contains 3, then any neighbouring square cannot contain either 2 or 4.

    ● Anti Diagonal Sudoku each diagonal has at most three different digits.

    ● Center Dot is a variant of sudoku, where central cells of each region form an extra region. This region must contain digits 1 through 9.

    ● Rossini Sudoku is a variation of the classic sudoku. The arrows outside the grid indicate that the nearest three digits in the corresponding direction are in ascending or descending order (the highest number is always in the direction of the arrow). All possible arrows are given, so if there is no arrow, the first three digits do not form an increasing sequence in either direction.

    ● Skyscraper Sudoku contains clues around the edge. The task is to place digits in the grid. Each digit represents the height of the skyscraper in each cell. The numbers outside the grid represent the number of skyscrapers seen from the corresponding direction.

    ● Argyle Sudoku contains additional diagonals; every marked diagonal line contains each digit not more than once. The argyle pattern is derived from the tartan of Clan Campbell, in eastern Scotland.

    ● Girandola is an ordinary sudoku with one extra group of cells. This group must also contain digits 1 through 9. (Girandola is a kind of revolving firework.)


    ● Little Killer Sudoku contains numbers and arrows around the edge. The numbered arrows outside the grid indicate the sum of the digits in the corresponding direction. Digits can repeat in the direction of the arrow.

    ● Hoshi consists of six large triangles; the numbers 1 through 9 must be placed into the triangular cells of each large triangle. Every line (of any length, even uncontinous) contains every digit not more than once.

    ● Flower Sudoku ("Musketry Sudoku") has five sudoku puzzles in layout, similar to Samurai Sudoku. However, these puzzles overlap each other much more than in Samurai. The center grid is fully covered by the remaining four sub-puzzles.

    ● Butterfly Sudoku is the variation of the original sudoku. The puzzle consists of four grids 9 x 9. The numbers must be placed correctly for all the four puzzle squares.


    💡 Get sample problems here : https://www.malsar.in/category/aisc

🚫Disqualifications🚫

    For following activities, the candidate will be disqualified, and no refund will be provided:

    ● Incorrect Email id/mobile number/Incorrect Solution/Entry after end time/Candidates unavailability to attend the event/Sending solution to any admin by personal chat/Creating disturbance to other participants/Fight with the organiser

    ● In case of any dispute, the organisers decision will be considered as final.

🏆Rewards🏆

Overall Rank

● Rank 1 to 3: Exclusive Trophy + Winner Bagde + Certificate
● Rank 4 & 5 : Winner Badge + Certificate
● Rank 6 & 7 - 50% off on the next round
● All Rank holders- e-certificate with Rank

Age based Awards

● Under 11 Rank 1 : Exclusive Medal
● Above 50 Rank 1 : Exclusive Medal

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