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Create Snake Number Grid
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  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Create Snake Number Grid

Challenge No. 230: This challenge is contributed by Mehmet Çiçek.
Solved using: Excel VBA.

June 26, 2025July 10, 2025
Length Of Pattern!
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  • Advanced Mathematics Problem
  • Excel Challenges
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  • ⭐️⭐️⭐️ Intermediate

Length Of Pattern!

Challenge No. 145: Find the largest length of occurrences of the “++-” pattern across the test IDs for each product.
Solved using:Excel (CONCAT, GROUPBY, LAMBDA), Google Sheets, Power Query (List.Transform, Text.Combine, Table.AddColumn), Python, Python in Excel, and R.

June 26, 2025July 11, 2025
96 Common Challenges in Power Query
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96 Common Challenges in Power Query

96 Common Challenges in Power QueryPractical Solutions for … 96 Common Challenges in Power QueryRead more

June 26, 2025December 15, 2025
Find Double Base Palindromes
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  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Find Double Base Palindromes

Challenge No. 229: Find all double base Palindrome Numbers.
Solved using: Python in Excel.

June 26, 2025July 10, 2025
Multiply Columns by Factor Dynamically
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  • ⭐️⭐️⭐️ Intermediate

Multiply Columns by Factor Dynamically

Challenge No. 73: Multiply Alpha, Beta, Gamma columns with Factor column.
Solved using: Python in Excel.

June 26, 2025July 12, 2025
Encrypt Using Affine Cipher
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  • ⭐️ Beginner

Encrypt Using Affine Cipher

Challenge No. 232: Affine Cipher
This is a kind of Caesar’s Cipher.
Solved using: Excel VBA.

June 26, 2025July 10, 2025
Classify Deficient Perfect Abundant
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  • ⭐️ Beginner

Classify Deficient Perfect Abundant

Challenge No. 228: Take a positive integer n and add its positive divisors (let’s denote it by S)
Classify the numbers as per given criteria:
If S < 2n = Deficient Number If S = 2n = Perfect Number If S > 2n = Abundant Number
Ex.
Solved using: Python in Excel.

June 25, 2025July 10, 2025
Transpose Departments into Row
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  • ⭐️⭐️⭐️⭐️ Advanced

Transpose Departments into Row

Challenge No. 72: Transpose the data in a single row for all departments.
Solved using: Power Query (List.Transform).

June 25, 2025July 12, 2025
Decode Numbered Character Words
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  • ⭐️ Beginner

Decode Numbered Character Words

Challenge No. 227: In column A, characters are separated by 1.
Solved using: Power Query.

June 25, 2025July 10, 2025
First Date Of Months!
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  • ⭐️ Beginner

First Date Of Months!

Challenge No. 144: From the provided “transactions” table, filter the first transaction for each.
Solved using:Excel (DROP, FILTER, LAMBDA), Google Sheets, Power Query (Date.Month, Table.AddColumn, Table.Group), Python, Python in Excel, and R.

June 25, 2025July 11, 2025

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  • 96 Common Challenges in Power Query
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BYROW CHAR CODE CONCAT DROP FILTER HSTACK IF IFERROR INDEX LAMBDA LEFT LEN LET List.Distinct List.Transform LOOKUP MAP MATCH MAX MID MONTH Python Python Automation Python for Data Analysis Python for Excel REDUCE ROW ROWS SCAN SEQUENCE SORT SUBSTITUTE Table.AddColumn Table.Group Table.SelectRows TAKE Text.Combine Text.Split TEXTJOIN TEXTSPLIT TOCOL UNIQUE VSTACK XLOOKUP

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  • By Difficulty
    • ⭐️ Beginner
    • ⭐️⭐️ Easy
    • ⭐️⭐️⭐️ Intermediate
    • ⭐️⭐️⭐️⭐️ Advanced
    • ⭐️⭐️⭐️⭐️⭐️Expert
    • ⭐️⭐️⭐️⭐️⭐️⭐️Complex
  • By Topic
    • Advanced Mathematics Problem
    • Aggregation & Summarization
    • Column Splitting
    • Column Transformation
    • Custom Grouping
    • Data Cleaning
    • Data Transformation
    • Date & Time Handling
    • Financial Problems
    • Indexing & Ranking
    • Merging & Joining
    • Missing Values
    • Pivot & Unpivot
    • Text Processing
  • By Creator
    • Omid Challenges
    • ExcelBI Excel Challenges
    • ExcelBI Power Query Challenges
    • Crispo Challenges
  • By Software
    • DAX Challenges
    • Excel Challenges
    • Excel VBA Challenges
    • Google Sheets Challenges
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    • R Challenges
    • SQL Challenges
  • Books
    • 96 Common Challenges in Power Query