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storm_norm · Joined: 18 Oct 2007 Posts: 1741

after basics, there is an almost almost AIC
its better visualized as a Kraken cell in r9c5.

peterj · Joined: 26 Mar 2010 Posts: 974 Location: London, UK

An ANT using a similar chain did it for me...

ANT(138) (138=5)r789c6 - (5=7)r8c4 - (7=1)r8c2 - (1=7)r3c2 - (7=1)r3c5; r1c6<>1, r9c5<>1

tlanglet · Posted: Mon Jul 05, 2010 1:49 pm Post subject:

Three steps.........

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Not unsurprisingly, there's also a nearly ALS xz...working with all the same suspects....

A={1,2,3,4,5,6,7} (Pink)
B={6,7} (Green)
x=6
z=7 at r9c3 (Blue)..solves the puzzle..well not quite

There is a 7 in r1c4 that spoils the party but if that 7 is true then r8c4 and r9c3<> 7 and puzzle solved.

peterj · Joined: 26 Mar 2010 Posts: 974 Location: London, UK

Following on from ttt's comments in Other Puzzles, it might be simpler to see the flip side of the ALS as a smaller Almost Hidden Pair(67) in r1c45. If r1c3 not 7 then forms the HP in r1 which forms a naked pair in c4 which makes r8c4<>7 and puts a 7 in r8c12 - making the same elimination as the AlS/ALS.

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Complementary, Dear Watson. Nice spot Peter.

tlanglet · Posted: Mon Jul 05, 2010 7:48 pm Post subject:

MM: Wonderful ALS_XZ Exclamation

I think your initial "MM" really stands for "Mogul Magic"

Peter: Very, very nice ANT Exclamation

Also peter, I was wondering how tp annotate your second solution with the AHP(67).

Ted

Luke451 · Posted: Mon Jul 05, 2010 8:39 pm Post subject:

peterj · Joined: 26 Mar 2010 Posts: 974 Location: London, UK

Luke451 · Posted: Tue Jul 06, 2010 4:23 am Post subject:

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Have a great time Peter! That will be a great occasion - Spain have never won the world cup or even giot this far so the place will be at fever xx. A small tip - if you are large and/or fair haired (as I am) be careful you are not mistaken for a German (as I am, continually!).

Of course, I can't vouch for what might happen if Spain lose!

Mogulmeister · Joined: 03 May 2007 Posts: 1151

The notational point is a good one Ted as it does present some interesting challenges. As Danny et al have previously mentioned: how to notate in a meaningful but comprehensible fashion ? As you can see from Peter's notation, the hidden pair is implicit - how to make it explicit ? I can see Ronk and others having fun with this.....

Peter spotted that the complement to my ALS is an almost hidden pair (67) similar to the situation uncovered by ttt elsewhere*. It is implicit and conditional on there being no 7 in r1c3.

A very small suggestion would be to flag the AHP. This might be better than a footnote.....purists probably won't like it but someone coming after might......

7(r1c3)=AHP(67-125)r1c45=(67)r19c4-(7)r8c4=(7)r8c12; r9c3<>7

* http://www.dailysudoku.com/sudoku/forums/viewtopic.php?t=4816&start=13&sid=bd0d2f63e5298277b7021b4af71fc0c2

Mogulmeister · Joined: 03 May 2007 Posts: 1151

I guess strictly speaking because of the position, the AHP above is just HP.

So the AHP should be more precise ??

AHP [7(r1c3)=(67-125)r1c45]=(67)r19c4-(7)r8c4=(7)r8c12; r9c3<>7

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Marty R. · Posted: Wed Jul 07, 2010 3:35 am Post subject:

I used :

ERs (4,1)
Implications of UR (67)
W-Wing (15)
XYZ-Transport (167)

Luke451 · Posted: Thu Jul 08, 2010 4:22 am Post subject:

I wonder how Peter's night went (Spain 1, Deutschland nil) Very Happy

......

Now that the off-topic barrier has given way to outright hijacking, here's my story.

One of the nights of my life was on the Fourth of July, 2006.

We were on vacation in Europe and got caught up in football fever as we traveled from Barcelona to Italy over the course of two weeks. On the night of the 4th we were on the second of four days in Venice, and that evening was Italy/Germany in the semis of the 2006 World Cup in Deutschland. I scouted out a place to watch the game and (naturally) I found St. Luke's Square near the Ponte de Rialta Bridge.

"Campo San Luca" has a tiny neighborhood bar called "Union Jack" in one corner, shops, restaurants, and a disco. Seven winding Venetian alleys meet at this one Campo, which turned out to be fortunate later in the night.

After dinner we set up camp at the little bar and the women went across the square to the disco. The front of the bar was completely open to the square, no doors or walls. When the game started a crush of guys were behind us, straining to see one of the two little TVs.

As the night went on things started to get a little wild. I could hear shouts of "Limoncello!" coming from across the campo as folks in the disco (including our ladies it turned out) were downing shots of the ghastly sweet lemon liqueur. There was no scoring in regulation, so when it went into extra time the anxiety got ratcheted up through the roof.

Then....a corner kick by Italy, an artful pass off the side of the foot and BOOM! Such a hard clean goal as you ever saw. The place just erupted and I was soon stunned to realize there seemed to be about a hundred people behind us now. You can imagine the bedlam.

It seems like just minutes later Italy got a fast counterattack going, there was another great pass, a breakaway and BOOM, another goal! What happened next can only be described as being swept away in a crush of delirious joy. As noisy as things got when the game ended 2-0, a strange echo could be heard above the din. Something was approaching the campo and it was getting louder and louder.

At that point two wild guys with Italian flags held high above their heads burst around the corner. Behind came dozens more, all literally screaming at the top of their lungs. They didn't stop running when they hit the square, they just kept running around and around in a vortex, sweeping us all into the mix. A few minutes later, they swooshed off down the alley and were off to the next square.

That turned out to be just the beginning, as wave after wave swept into the campo from one of the seven alleys and it started all over again. I must have shouted "Viva Italia!!" a hundred times. When things finally settled down we were completely exhausted, soaked to the bone with champagne spray. We realized we had been laughing, yelling and running like madmen for a solid half hour. If you've ever wondered how people celebrate a big win in a town without horns to honk, now you know. When in Rome....

About one in the morning I was back on the dock of our hotel on the Grand Canal, shoes off and my dogs in the cool water. It was all quiet on the western front and my cousin sat down beside me. I just said, "I can't believe where we are tonight..." His reply was, "The right place at the right time."

Years later I still have a soft spot in my heart for the Italian National team...

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Great story Luke - I woke up in Siena last year with a particularly evil limoncello hangover.

I have a feeling that when they show their faces in public, the Italian team members will find lots of people trying to find their "soft spots".