Author |
Message |
Topic: Black Belt Sudoku - Frank Longo - another killer |
boweasel
Replies: 3
Views: 33020
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Forum: Other puzzles Posted: Wed Jun 14, 2006 6:53 pm Subject: Black Belt Sudoku - Frank Longo - another killer |
Keith, Marty:
Thanks for your help. I can't tell you how long I stared at that puzzle, and never, EVER saw that incredibly simple X-Wing.
I'm ashamed to admit it, but I even made up grids for eac ... |
Topic: Black Belt Sudoku - Frank Longo - another killer |
boweasel
Replies: 3
Views: 33020
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Forum: Other puzzles Posted: Sun Jun 11, 2006 5:11 pm Subject: Black Belt Sudoku - Frank Longo - another killer |
Okay, here's another one I seem unable to solve by what I consider reasonable methods. I can find no usable unique rectangles, X-wings, Y-wings, XY-wings, or swordfish.
I HAVE solved the puzzle. Ho ... |
Topic: Black Belt Sudoku (2nd degree) - Frank Longo |
boweasel
Replies: 18
Views: 83504
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Forum: Other puzzles Posted: Wed May 17, 2006 8:32 pm Subject: Black Belt Sudoku (2nd degree) - Frank Longo |
Yes. thanks David. It does make sense, although there certainly seems to be more of an educated 'trial and error' quality to coloring than to other logic techniques such as XY Wings, and it might be ... |
Topic: Black Belt Sudoku (2nd degree) - Frank Longo |
boweasel
Replies: 18
Views: 83504
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Forum: Other puzzles Posted: Mon May 15, 2006 8:34 pm Subject: Black Belt Sudoku (2nd degree) - Frank Longo |
Picked up his book the other day, and am having difficulty with this puzzle. Is there a technique beyond guessing I can use to solve it?
2 3 6/7 4 8 6/7 9 ... |
Topic: Test One |
boweasel
Replies: 8
Views: 135931
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Forum: Test Posted: Mon May 15, 2006 7:56 pm Subject: Test One |
1 3 6/7 4 8 6/7 9 1/5 1/5 4/9 4/9 5 3 1 2 6/8 7 6/8 |
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