n: 40 m: 287 packed: 13 density: 0 nodes: 0 solveTime: 2410 buildTime: 50 solved: true
{0,16,20}
{2,5,29}
{3,7,26}
{4,11,27}
{6,33,37}
{8,19,36}
{9,18,31}
{10,21,39}
{12,23,28}
{13,14,35}
{15,22,24}
{17,34,38}
{25,30,32}