n: 30 m: 439 packed: 10 density: 0 nodes: 0 solveTime: 19780 buildTime: 120 solved: true
{0,23,26}
{1,6,28}
{2,10,25}
{3,4,11}
{5,20,21}
{7,8,9}
{12,16,29}
{13,19,22}
{14,24,27}
{15,17,18}