PlaySudoku.us
Hard · Puzzle #69
1
2
5
4
9
1
8
3
5
6
8
1
8
3
1
6
6
2
3
7
3
1
9
5
8
7
2
Keep a mental note of which digits are 'almost placed' — appearing 8 times on the board. One more elimination will solve them.
Keep a mental note of which digits are 'almost placed' — appearing 8 times on the board. One more elimination will solve them.
"The only way to learn mathematics is to do mathematics." — Paul Halmos
"The only way to learn mathematics is to do mathematics." — Paul Halmos