n: 40 m: 635 packed: 13 density: 0 nodes: 0 solveTime: 37460 buildTime: 240 solved: true
{0,9,23}
{1,4,7}
{2,8,30}
{3,29,34}
{5,6,35}
{11,31,37}
{12,14,32}
{13,17,36}
{15,19,38}
{16,20,26}
{18,28,33}
{21,25,27}
{22,24,39}