n: 40 m: 447 packed: 13 density: 0 nodes: 0 solveTime: 6090 buildTime: 110 solved: true
{0,13,21}
{1,2,5}
{3,4,28}
{6,7,22}
{8,36,39}
{9,32,37}
{10,33,38}
{11,12,26}
{14,16,31}
{15,17,24}
{18,20,30}
{19,23,25}
{29,34,35}