The Cracker Barrel peg game is a simple, one-player game commonly found on tables at pancake restaurants. In this paper, we consider the computational complexity of the Cracker Barrel problem. We show that a variation of a generalization of the problem is NP-complete.
Leave only one — you're genius,
. . . Leave four or more'n you're just plain "eg-no-ra-moose"".
Cracker Barrel peg game instructions