n: 40 m: 619 packed: 13 density: 0 nodes: 0 solveTime: 36340 buildTime: 230 solved: true
{0,3,23}
{1,2,15}
{5,28,34}
{6,9,21}
{7,29,35}
{8,16,17}
{10,33,39}
{11,27,38}
{12,22,36}
{13,31,37}
{14,25,30}
{18,20,32}
{19,24,26}