The English section of South Korea's gruelling college entrance exam, or Suneung, is notoriously difficult, with some students comparing it to deciphering an ancient script, and others calling it "insane".

So intense was the criticism around this year's test that the top official in charge of administering it resigned to take responsibility for the "chaos" it caused.

"We sincerely accept the criticism that the difficulty of questions... was inappropriate," said Suneung chief Oh Seung-geol, adding that the test "fell short" despite having gone through several rounds of editing.

Among the most daunting questions are one on Immanuel Kant's philosophy of law and another involving gaming jargon.

The latter, worth three points, asks students to pick where a sentence should fit in a given paragraph. Here's the sentence in bold, followed by the paragraph: