the nighmare of February 12 was not correct and could be solved with singles only.
Fortunately, I was informed by someone on the sudoku programmers forum.
The problem has been fixed.
Ruud.
I had a bad nightmare
I had a bad nightmare
“If the human brain were so simple that we could understand it, we would be so simple that we couldn't.” - Emerson M Pugh
Curses! Foiled again!
I was about halfway through this one, and doing pretty well, when Ruud withdrew it. For thise of you who are curious, here is the original Feb 12 2006 puzzle.
I think the problem is, it is not difficult enough to be a Nightmare. Perhaps Ruud should have said, "Sorry, I had a good nightmare!"
Best wishes,
Keith
Code: Select all
Puzzle: DSN021206 WITHDRAWN
+-------+-------+-------+
| . . . | 5 . 9 | . . . |
| 9 7 . | 6 . . | 5 . . |
| . . . | . . 4 | 2 . . |
+-------+-------+-------+
| . 8 . | . . . | . . 3 |
| 6 . . | 1 5 2 | . . 4 |
| 1 . . | . . . | . 7 . |
+-------+-------+-------+
| . . 4 | 7 . . | . . . |
| . . 5 | . . 6 | . 9 8 |
| . . . | 2 . 1 | . . . |
+-------+-------+-------+
Best wishes,
Keith