diff --git a/tests/4_determinant.js b/tests/4_determinant.js
deleted file mode 100644
index dc1db11..0000000
--- a/tests/4_determinant.js
+++ /dev/null
@@ -1,25 +0,0 @@
-module.exports = {
-  prompt: `
-// Write an async JavaScript function 'calculateDeterminant' that calculates the determinant of a square matrix.
-// - The function must accept an n x n matrix, represented as an array of arrays.
-// - You MUST use a dynamic import() to load the 'mathjs' library from a CDN.
-// - You MUST use the library's built-in 'det' function to perform the calculation.
-// - The function should return the determinant value.
-`,
-  harness: `
-const assert = require('assert');
-async function runTest() {
-  const matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
-  try {
-    const det = await calculateDeterminant(matrix);
-    assert.strictEqual(det, 0, "Test Failed: Determinant of [[1,2,3],[4,5,6],[7,8,9]] should be 0.");
-    console.log("Test Passed!");
-    process.exit(0);
-  } catch (e) {
-    console.error("Test Execution Error:", e.message);
-    process.exit(1);
-  }
-}
-runTest();
-`
-};