MatrixChallenge is a code editor software product available on the Whop marketplace, created by etaoleoventas and launched in December 2025.

Have the function MatrixChallenge(strArr) take the strArr parameter being passed which will be a 2D matrix of some arbitrary size filled with letters from the alphabet, and determine if a 2x2 square composed entirely of vowels exists in the matrix. For example: strArr is ["abcd", "eikr", "oufj"] then this matrix looks like the following: a b c d e i  k  r o u f  j Within this matrix there is a 2x2 square of vowels starting in the second row and first column, namely, ei, ou. If a 2x2 square of vowels is found your program should return the top-left position (row-column) of the square, so for this example your program should return 1-0. If no 2x2 square of vowels exists, then return the string not found. If there are multiple squares of vowels, return the one that is at the most top-left position in the whole matrix. The input matrix will at least be of size 2x2.

MatrixChallenge has is priced at $7 (one-time payment).

MatrixChallenge offers a 30% affiliate commission for promoters. Track MatrixChallenge's estimated revenue, member growth trends, and competitive market position on Whop Trends.