x 3 y uppose that x y 1 2 2 1 Then the configuration 6 754 8

Last updated: 6/23/2023

x 3 y uppose that x y 1 2 2 1 Then the configuration 6 754 8 can be 1 2 3 eached from the 8 puzzle 4 5 6 by moving squares in and out of the space 17 9