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UGC-NET | UGC NET CS 2016 July – III | Question 74

Consider a 3-puzzle where, like in the usual 8-puzzle game, a tile can only move to an adjacent empty space. Given the initial state

, which of the following state cannot be reached?

(A) (1)
(B) (2)
(C) (3)
(D) (4)

Answer: (C)
Explanation:
Option (C) is not reachable.
So, option (C) is correct.
Quiz of this Question

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