One way to compare chess-playing programs is to compare how they perform with fixed time limits per move. Given any t...

Andreina-Escobar on September 24, 2018

Answer D

I have been trying to figure out what is wrong with answer choice D. What part of the AC makes it wrong?

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Mehran on September 24, 2018

@Andreina-Escobar (D) is a trap answer.

The stimulus is comparing the SAME chess-playing program on different computers, one of which is faster than the other.

(D) refers to "two DIFFERENT chess-playing programs" so (D) is not necessarily true and (D) would be eliminated.

Hope that helps!

yckim2180 on June 29, 2020

I understand why rest of the answers are wrong, but could you please explain why C is correct? Where in the stimulus is the phrase "in general" supported?

shunhe on July 3, 2020

Hi @yckim2180,

Thanks for the question! The “generally” language is supported by the pretty broad way this stimulus is worded. We know that chess programs on faster computers have a better chance of winning because of the second sentence. We also know that this is because the program gets to examine more possible moves in the time limit. In other words, it’s a causal relation, not a correlation. So because of this, we can get that generally speaking, the more moves a chess-playing program can examine, the better the chances it will win. “In general” also allows for exceptions; (C) would have been less supported if it had said “All chess-playing programs” or something like that.

Hope this helps! Feel free to ask any other questions that you might have.