PlaySudoku.us
Evil · Puzzle #522
3
4
1
5
2
4
1
8
7
8
3
9
7
5
3
7
6
1
9
5
3
4
7
6
3
Techniques used
- Hidden Single
- Naked Triple
- Pointing Pair
- Box-Line Reduction
- Naked Single
- Skyscraper
- W-Wing
- XY-Chain
- XY-Wing
"Nothing in life is to be feared, only to be understood. Now is the time to understand more, so that we may fear less." — Marie Curie
"Nothing in life is to be feared, only to be understood. Now is the time to understand more, so that we may fear less." — Marie Curie
A Sudoku puzzle's 'information content' can be measured: a minimal 17-clue puzzle encodes roughly 26 bits of information.
A Sudoku puzzle's 'information content' can be measured: a minimal 17-clue puzzle encodes roughly 26 bits of information.