n: 40 m: 474 packed: 13 density: 0 nodes: 0 solveTime: 27940 buildTime: 130 solved: true
{0,6,16}
{1,7,25}
{2,8,9}
{3,4,24}
{10,35,39}
{11,22,30}
{12,28,34}
{13,19,23}
{14,17,31}
{15,18,32}
{20,26,29}
{21,27,37}
{33,36,38}