dailysudoku.com

Is this thing on?

Hi Marty and all,
I think all Paolo is saying, regardless of whether his basics are complete, is that a 2 in r3c5 leads to a contradiction, in that r6c5 (in box 5) must be a 1, while at the same time ...

+------------+----------------+------------------+
| 234 79 24 | 49 34789 6 | 378 5 1 |
| 13 67 5 | 17 1378 2 | 4 9 3678 |
| 134 679 8 | 5 13479 1479 | 37 67 ...

There is also a hidden 159 triple in c5 that lets you set 3r5c5, but you still need an X wing on 6 or Clement's wing or another XY of 46-7 pivoted in r4c5 to solve it.
I would not have posted this, b ...

When you get to the point where the naked 189 triple is there, the seven can also be exposed as a sole candidate ( in either box 1 or c2 ) by the 36 hidden pair in r12c2.
I don't know if hidden pair ...

Hi Guys,
I saw your 26-8 XY, but then I got to here and needed a 28-3 XY to finish.
+---------------+-----------+----------------+
| 7 6 49 | 5 2 1 | 389 34 38 |
| 19 3 5 | ...

Hi Clement,
I think there may be a mistake somewhere, maybe a typo, but setting 5r4c5 does not lead me to a solution.
Rick

I know many of you boys can’t wait for the next VH, but that’s not me.

I've just finished with today’s H, and I have to say I still love a good H one. Sure the VH are stimulating and fun, if you ...

I got to this point and still can't solve it...

+--------------------------------------+
| 8 4 1 | 7 6 9 | 5 2 3 |
| 26 69 29 | 4 5 3 | 7 1 8 |
| 7 ...

It's hiding from you again.
Look at the 4's in row 4.

I don't believe in jinxes any more than I believe we are going to get better, more challenging, vh puzzles anytime soon. Remember the astonishing one that needed about six vh moves to solve? Was tha ...

I might be in the minority among posters here, but I prefer the H puzzles to most of the VH ones we get.
The H's are usually more complex in the basics and therefore are more like what I liked abou ...

I don't know what to call it, but the 58 pairs in r3c9 and r7c3 (acting as pincers) are linked together by the 56 pairs in r5c39 (acting as the pivot), so -8r7c9. It works like an XY wing, but the pi ...

Hi Marty,
We've had a real drought of Eureka lately, so I'm glad to see a few sprinkles. However, I don't follow your logic. If I understand it, you are essentially saying "If r7c7 were a 7 th ...

It didn't help in the end, but I noticed that r7c7 (67) and r8c6 (67) were locked together by r7c4 (67); that is r7c7 and r8c6 are either both 6 or are both 7.

There is a potential 23-7 XY pivoted ...

. . . or an X Wing in r39 eliminates the 3 in r4c8.

Seems to be basics only.
To check, I used Hint and Grade. After setting about 12 singles, the grade changes from Very Hard to just Hard.
Maybe there is a tedium factor in the grading.

More and more lately I have been using the "Fishy" xy with these VH puzzles. Today I used the Fishy 135 xy pivoted in r1c8, with pincers at r2c9 and r1c2, to eliminate the 5 in r2c5. With ...

Wow! I am the last guy who should be mediating a Eureka discussion between you two. But I have noticed that you are both using the same ending cells, the only difference being the interim path, which ...

Eureka!
I was trying to do too much with this Eureka notation. I thought it was a means to discovery, but instead it's only a method to show what was discovered some other way.
I had mistakenly th ...