n: 40 m: 224 packed: 13 density: 0 nodes: 0 solveTime: 1320 buildTime: 40 solved: true
{0,28,36}
{1,15,37}
{2,7,11}
{3,8,25}
{4,18,39}
{5,6,13}
{9,10,12}
{14,22,26}
{16,27,33}
{17,34,35}
{20,23,24}
{21,31,38}
{29,30,32}