n: 40 m: 177 packed: 13 density: 0 nodes: 0 solveTime: 870 buildTime: 20 solved: true
{0,3,19}
{1,13,37}
{2,22,25}
{4,11,17}
{5,18,20}
{6,33,34}
{7,12,29}
{8,10,26}
{9,23,31}
{14,28,39}
{15,16,32}
{21,35,38}
{24,27,30}