I tried everything on the online editor but still get the error. But when I do this on VSCode on my machine, it works fine. I'm confused and can't submit the code without finding the bug. I don't know where to look anymore. I wish I had another pair of eyes looking at this for me. I am truely thankful.

//puzzle
let puzzle = [
  [8, 9, 5, 7, 4, 2, 1, 3, 6],
  [2, 7, 1, 9, 6, 3, 4, 8, 5],
  [4, 6, 3, 5, 8, 1, 7, 9, 2],

  [9, 3, 4, 6, 1, 7, 2, 5, 8],
  [5, 1, 7, 2, 3, 8, 9, 6, 4],
  [6, 8, 2, 4, 5, 9, 3, 7, 1],

  [1, 5, 9, 8, 7, 4, 6, 2, 3],
  [7, 4, 6, 3, 2, 5, 8, 1, 9],
  [3, 2, 8, 1, 9, 6, 5, 4, 7],
];

//puzzle 2
let puzzleTwo = [
  [8, 9, 5, 7, 4, 2, 1, 3, 6],
  [8, 7, 1, 9, 6, 3, 4, 8, 5],
  [4, 6, 3, 5, 8, 1, 7, 9, 2],
  [9, 3, 4, 6, 1, 7, 2, 5, 8],
  [5, 1, 7, 2, 3, 8, 9, 6, 4],
  [6, 8, 2, 4, 5, 9, 3, 7, 1],
  [1, 5, 9, 8, 7, 4, 6, 2, 3],
  [7, 4, 6, 3, 2, 5, 8, 1, 9],
  [3, 2, 8, 1, 9, 6, 5, 4, 7],
];

//DO NOT EDIT ABOVE

function getRow(puzzle, row) {
  let array = [];
  for (let i = 0; i 
This is the error message I received. When the sudoku is invalid, the prompt asks me to return false. As you can see, it does return false for invalid puzzles, but not for all invalid puzzles. 
FAIL ./index.test.js
  sudoku sudokuIsValid
    ✓ returns false for an invalid puzzle (2 ms)
    ✕ returns false for other invalid puzzles (2 ms)

  ● sudoku sudokuIsValid › returns false for other invalid puzzles

    expect(received).toBe(expected) // Object.is equality

    Expected: false
    Received: true

      21 |     ];
      22 |     let result = sudoku.sudokuIsValid(puzzle)
    > 23 |     expect(result).toBe(false);
         |                    ^
      24 |   });
      25 |
      26 | });

      at Object. (index.test.js:23:20)