Can a Sudoku have 2 solutions?

Related questions

1. Are some Sudoku puzzles unsolvable?
2. Is sudoku good for maths?
3. Does Sudoku improve logic?
4. What is the technique to solve Sudoku?
5. What is the swordfish technique in Sudoku?
6. Is there a mathematical way to solve Sudoku?
7. Can a sudoku be impossible?
8. Where are the hidden triples in Sudoku?
9. Can a sudoku be unsolvable?
10. Do diagonals count in Sudoku?

Tags

1. #probably
2. #published
3. #according
4. #there
5. #clues
6. #multiple
7. #incomplete
8. #extreme
9. #solution
10. #sudoku
11. #mistake
12. #puzzles
13. #solutions
14. #wikipedia
15. #puzzle