n: 40 m: 323 packed: 13 density: 0 nodes: 0 solveTime: 1840 buildTime: 60 solved: true
{0,2,20}
{1,3,27}
{4,24,32}
{5,8,18}
{6,7,29}
{9,15,21}
{10,26,36}
{11,22,34}
{12,28,37}
{13,19,35}
{14,16,38}
{17,31,33}
{23,30,39}