n: 40 m: 344 packed: 13 density: 0 nodes: 0 solveTime: 2440 buildTime: 70 solved: true
{0,12,19}
{1,13,26}
{2,24,31}
{3,17,25}
{4,28,37}
{5,10,21}
{6,18,23}
{7,16,27}
{8,30,35}
{9,33,34}
{11,36,39}
{14,22,38}
{15,29,32}