References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic... Continue Reading →

# 30th Day of Year – 30.01.2021: Colored Patterns and Magic Square

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic... Continue Reading →

# 29th Day of Year – 29.01.2021: Colored Patterns and Magic Square

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic... Continue Reading →

# 28th Day of Year – 28.01.2021: Colored Patterns and Magic Square

# 27th Day of Year – 27.01.2021: Colored Patterns and Magic Square

# 22nd Day of Year – 22.01.2021: Colored Patterns and Magic Square

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum... Continue Reading →

# Block-Wise and Block-Bordered Magic and Bimagic Squares of Orders 10 to 47

We know that we can always write block-wise magic squares of any order except for the orders of type p and 2p, where p is a prime number. On the other hand we can always write bordered magic squares of any order. The aims of this work is to combine the both, i.e., bordered and... Continue Reading →

# 21st Day, 21st Year and 21st Century: Upside-Down Semi-Magic Squares of Order 21 With Digits 2 and 1

Semi-Magic Squares of Order 21 With Digits 2 and 1 Above two magic square are semi-magic squares with locks of orders 3 and 7. The semi-magic sums of semi-magic squares is 35555555552. Instead of semi-magic we can construct magic square also, but in this it will be without blocks. Morever, the above magic squares are... Continue Reading →

# 21st Day of the Year 21st of the 21st Century: Magic Square of Order 21 With Magic Sum 21

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum... Continue Reading →

# 20th Day of Year – 20.01.2021: Colored Patterns and Magic Square

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum... Continue Reading →

# 19th Day of Year – 19.01.2021: Colored Patterns and Magic Square

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021... Continue Reading →

# 18th Day of Year – 18.01.2021: Colored Patterns and Magic Square

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum... Continue Reading →

# 17th Day of Year – 17.01.2021: Colored Patterns and Magic Square

# 16th Day of Year – 16.01.2021: Colored Patterns and Magic Square

# 15th Day of Year – 15.01.2021: Colored Patterns and Magic Square

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021... Continue Reading →

# 14th Day of Year – 14.01.2021: Colored Patterns and Magic Square

References: Inder J. Taneja, Colored Patterns With 2021 On a Board of 9×9, https://inderjtaneja.com/2020/12/26/colored-pattern-with-2021-on-a-board-of-9×9/Inder J. Taneja, Block-Wise and Block-Bordered Magic and Bimagic Squares With Magic Sums 21, 21^2 and 2021, https://inderjtaneja.com/2020/12/20/block-wise-and-block-bordered-magic-and-bimagic-squares-with-magic-sums-21-212-and-2021/Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021, https://inderjtaneja.com/2020/12/18/fractional-and-decimal-type-bordered-magic-squares-with-magic-sum-2021/ . Also refers: Inder J. Taneja, Fractional and Decimal Type Bordered Magic Squares With Magic Sum 2021... Continue Reading →