n: 40 m: 589 packed: 13 density: 0 nodes: 0 solveTime: 92390 buildTime: 210 solved: true
{0,3,9}
{1,2,14}
{5,36,39}
{6,10,22}
{7,11,30}
{8,13,32}
{12,24,38}
{15,31,34}
{16,20,28}
{17,26,29}
{18,23,25}
{19,27,37}
{21,33,35}