Is this sentence (found on Wikipedia) correct?

On the Wikipedia article on 'quiz', the first sentence states:

A quiz is a form of game or mind sport, attempt to answer questions correctly.

I don't quite get the use of the word 'attempt' here. As a matter of fact, I don't understand how the entire part of the sentence after the comma (what is a word for such a subsentence?) makes sense in the context of the larger sentence. Is this sentence simply wrong, or am I mistaken?

Solution 1:

This is not a grammatical sentence. It would be better for this sentence to say 'A quiz is a form of game or mind sport in which participants attempt to answer questions correctly'. The two changes I made were (1) removing the comma and (2) adding the bold-text words.