PlaySudoku.us
Evil · Puzzle #185
8
5
1
4
8
5
7
6
2
5
4
3
8
2
6
9
3
2
7
5
4
6
9
5
2
Techniques used
- Hidden Single
- Pointing Pair
- Forcing Chains
- Naked Single
- Box-Line Reduction
- XY-Chain
- Simple Coloring
The average newspaper Sudoku takes about 20 minutes to solve for an experienced solver.
The average newspaper Sudoku takes about 20 minutes to solve for an experienced solver.
Attempt a Hard puzzle on paper — no undo button, no highlights. That's how the classics were meant to be played.
Attempt a Hard puzzle on paper — no undo button, no highlights. That's how the classics were meant to be played.