n: 40 m: 323 packed: 13 density: 0 nodes: 0 solveTime: 1840 buildTime: 60 solved: true
{0,11,20}
{1,2,25}
{3,10,28}
{4,13,37}
{5,6,21}
{7,17,19}
{9,14,36}
{12,27,39}
{15,22,24}
{16,26,32}
{18,23,30}
{29,31,34}
{33,35,38}