n: 40 m: 323 packed: 13 density: 0 nodes: 0 solveTime: 4950 buildTime: 60 solved: true
{0,9,21}
{1,12,30}
{2,22,32}
{3,17,35}
{4,24,31}
{5,10,16}
{6,7,13}
{8,15,19}
{11,34,38}
{14,23,37}
{18,20,26}
{25,28,36}
{27,33,39}