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:

The difference is that the action in the game world can only be explored through the virtual bodily space of the avatar.

A video game has its own model of reality, internal to itself and separate from the player's external reality, the player's bodily space and the avatar's bodily space.

The correct answer is 3.

Students are given 70 minutes to attempt 45 questions. Just over 3% of this year's test-takers scored the highest grade for the English section, compared to 6% last year.

It took me a long time to figure out [several questions] and understanding the texts themselves was tricky... [Some] answers looked similar to each other. So I was unsure until the last minute, said Im Na-hye, a senior in Hanyeong High School.

But English language professor Jung Chae-kwan says it is a misnomer to call the English test tough.

The texts aren't necessarily impossible, but... maddeningly confusing. It's a pain because it makes the material useless for actual education, says Prof Jung, who previously worked at the institution that administers the Suneung, and now teaches at Incheon National University.

Some pointed out that several passages used in the questions are excerpts from books that have been taken out of context, making them hard to comprehend.

As the Suneung is a monumental event for the rest of South Korea, it brings much of the country to a standstill for a single day. Only four of the 12 Suneung chiefs since the exam debuted in 1993 have served out their full three-year terms. While most stepped down because of errors in test questions, Mr. Oh is the first to resign over a test's difficulty.