n: 40 m: 666 packed: 13 density: 0 nodes: 0 solveTime: 50450 buildTime: 260 solved: true
{0,23,25}
{1,2,15}
{3,27,36}
{4,7,21}
{5,20,30}
{6,19,37}
{8,9,10}
{11,14,32}
{12,18,28}
{13,17,22}
{16,24,26}
{29,33,35}
{31,34,39}