Interchange © 1976 Texas Instruments.
A basic solitaire peg jumping game. A line of spaces is filled with pegs of two variants (ones and twos) except for one vacant spot in the middle. The player needs to reverse the order. Twos can only move to the left and ones to the right. Pegs can either move one spot or jump over another peg to move two spots.
Released on November 15, 1976.
HP Programmable Calculator (1977) as Pegged!