n: 40 m: 618 packed: 13 density: 0 nodes: 0 solveTime: 81320 buildTime: 230 solved: true
{0,15,37}
{1,7,14}
{2,5,6}
{3,4,8}
{9,10,11}
{12,23,28}
{13,27,36}
{16,35,38}
{17,22,34}
{18,19,25}
{20,21,29}
{24,26,32}
{30,31,33}