n: 40 m: 526 packed: 13 density: 0 nodes: 0 solveTime: 26750 buildTime: 170 solved: true
{0,19,33}
{1,10,31}
{2,11,34}
{3,20,22}
{4,13,18}
{5,9,27}
{6,16,17}
{7,8,28}
{12,14,39}
{15,25,29}
{21,23,26}
{24,30,35}
{36,37,38}