n: 30 m: 474 packed: 10 density: 0 nodes: 0 solveTime: 15130 buildTime: 130 solved: true
{0,21,25}
{1,7,14}
{2,3,4}
{5,10,11}
{6,8,13}
{9,28,29}
{12,19,26}
{15,16,22}
{17,23,27}
{18,20,24}