n: 30 m: 99 packed: 10 density: 0 nodes: 0 solveTime: 120 buildTime: 0 solved: true
{0,4,17}
{1,20,28}
{2,11,25}
{3,12,23}
{5,9,15}
{6,13,24}
{7,10,16}
{8,14,29}
{18,19,27}
{21,22,26}