dailysudoku.com

Oops! I missed an entry. In the original puzzle there is a 6 in r1c8 which makes all the difference and the puzzle is now solved.

Sorry for te mistake.

Pete
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[URL=http://www.ford-wiki.co ...

I bought Frank Longo's Mensa Book, Level 1 (?) and solved the first two puzzles ok, but ran into a wall on puzzle #3 after finding only two numbers! Here is where I'm stuck:

|--------------------- ...

Thank You, David.

It's amazing how clear the solution is once the clue is pointed out. I must've stared at it for an hour and not seen it. My excuse: On pen & paper version with corrections i ...

I'm stuck:

------------------------------------------
| 9 6 8 | 5 23 4 | 23 7 1 |
| 3 7 12 | 8 6 19 | 5 29 4 |
| 4 5 12 | 123 7 19 | 2369 2369 8 |
--------------- ...

There is a hidden pair 46 in column 7

Aaahh! Another case of the-more-I-looked-the-less-I-saw .... I've gotta stop doing puzzles late at night when I'm tired. I'm a morning person Smile

Thanks Rave ...

I cut my programming teeth about 40 years ago on Algol, btw...
Aarrghh!! You beat me, Chuck! I started only 30 years ago; and on COBOL.

My language of choice these days is Java, and I wrote a solver ...

Thank you all for your input. This was one of those cases where the more I looked, the more I missed Smile

BTW, WebSudoku's "evil" puzzles seem to be of about the same difficulty as Daily ...

Thank you, ravel, for responding, but I don't see the hidden pair -- yet. Could you point out the cells that constitute the interaction?

Thanks
Pete
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[URL=http://www.vaporshop.com/vapormati ...

Ran into a dead-end with an "Evil" puzzle from WebSudoku.com. Here's what I have so far:

+-----------------------------------+
| . . 5 | 6 7 . | . 9 4 |
| 9 . 4 | 3 5 . ...

I solve about 50% of hard puzzles and usually do medium ones in 20 minutes or less, but this one has me stumped. So far, I have

2 3 1 _ _ _ 9 7 6
4 _ _ 3 _ 7 _ _ _
8 7 _ 2 _ _ 4 _ ...