n: 30 m: 451 packed: 10 density: 0 nodes: 0 solveTime: 10870 buildTime: 120 solved: true
{0,4,13}
{1,2,3}
{5,7,10}
{6,8,18}
{9,21,28}
{11,14,17}
{12,20,29}
{15,16,25}
{19,22,27}
{23,24,26}