n: 40 m: 540 packed: 13 density: 0 nodes: 0 solveTime: 31280 buildTime: 180 solved: true
{0,9,23}
{1,6,16}
{2,3,18}
{4,19,30}
{5,15,36}
{7,33,39}
{8,10,34}
{11,24,28}
{12,17,29}
{13,20,38}
{14,35,37}
{21,22,27}
{26,31,32}