Enter a sudoku puzzle string below (see the Thonky.com sudoku page for an example of a puzzle
string in the text area below the puzzle), then click the Count Solutions
button to find out if the puzzle has a unique solution, multiple solutions,
or no solutions (i.e. an invalid puzzle).
All valid solutions will be listed.
Number of solutions: 1
Solved in 0.00079512596130371 seconds
Original puzzle: ..26...7.....3...6.7..4.3....9...6.3.......1....81..92..6....25....5....32.4..8.9
Solution:
432685971958137246671942358519724683283569417764813592146398725897256134325471869