n: 40 m: 612 packed: 13 density: 0 nodes: 0 solveTime: 25420 buildTime: 210 solved: true
{0,1,27}
{2,33,37}
{3,4,10}
{5,17,24}
{6,8,9}
{7,11,16}
{12,15,36}
{13,38,39}
{14,19,21}
{18,30,32}
{22,25,31}
{23,26,29}
{28,34,35}