n: 40 m: 564 packed: 13 density: 0 nodes: 0 solveTime: 44180 buildTime: 190 solved: true
{0,6,23}
{1,22,26}
{2,36,39}
{3,4,12}
{7,28,32}
{8,19,25}
{9,10,11}
{13,15,17}
{14,21,31}
{16,18,29}
{20,30,33}
{24,34,38}
{27,35,37}