n: 30 m: 537 packed: 10 density: 0 nodes: 0 solveTime: 1134680 buildTime: 180 solved: true
{0,3,21}
{1,11,13}
{2,4,6}
{5,10,20}
{7,14,18}
{8,16,17}
{9,19,27}
{12,15,29}
{22,26,28}
{23,24,25}