n: 40 m: 313 packed: 13 density: 0 nodes: 0 solveTime: 3570 buildTime: 60 solved: true
{0,17,24}
{1,6,19}
{2,7,26}
{3,5,11}
{4,9,21}
{8,33,34}
{10,14,29}
{12,20,23}
{13,35,37}
{15,30,39}
{16,25,28}
{18,22,32}
{27,31,36}