n: 40 m: 126 packed: 13 density: 0 nodes: 0 solveTime: 220 buildTime: 10 solved: true
{0,23,32}
{1,12,31}
{2,6,11}
{3,13,17}
{4,36,39}
{5,10,20}
{7,25,28}
{8,18,30}
{9,24,35}
{14,22,26}
{15,16,19}
{21,33,38}
{27,29,37}