Given: a=[[0]*6]*6 a[3][3]=4 print a [[0, 0, 0, 4, 0, 0], [0, 0, 0, 4, 0, 0], [0, 0, 0, 4, 0, 0], [0, 0, 0, 4, 0, 0], [0, 0, 0, 4, 0, 0], [0, 0, 0, 4, 0, 0]] What syntax should I use to get this result: [[0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0], [0, 0, 0, 4, 0, 0], [0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0]] Thanks for the help, Donovan Hide.