let board = [0,8,0,0,4,0,0,0,0,
0,0,2,0,0,0,7,0,0,
0,3,0,9,8,5,0,0,0,
0,0,4,0,0,0,0,0,5,
0,6,5,2,0,4,3,9,0,
7,0,0,0,0,0,6,0,0,
0,0,0,4,6,8,0,2,0,
0,0,9,0,0,0,8,0,0,
0,0,0,0,2,0,0,7,0];
Sudoku.solve(board);