n: 40 m: 552 packed: 13 density: 0 nodes: 0 solveTime: 31910 buildTime: 170 solved: true
{0,11,35}
{1,19,26}
{2,17,28}
{3,5,8}
{4,18,39}
{6,23,24}
{7,22,25}
{9,29,32}
{10,30,38}
{12,14,27}
{13,21,31}
{15,16,20}
{33,34,36}