n: 40 m: 172 packed: 13 density: 0 nodes: 0 solveTime: 290 buildTime: 20 solved: true
{0,25,33}
{1,28,29}
{2,6,13}
{3,22,26}
{5,20,39}
{7,9,35}
{8,16,34}
{10,36,38}
{11,21,27}
{12,23,24}
{14,19,31}
{15,17,32}
{18,30,37}