n: 40 m: 756 packed: 13 density: 0 nodes: 0 solveTime: 92450 buildTime: 340 solved: true
{0,3,5}
{1,2,39}
{4,34,35}
{6,9,11}
{7,22,26}
{10,24,25}
{12,30,33}
{13,18,32}
{14,36,38}
{15,31,37}
{16,19,28}
{17,21,27}
{20,23,29}