Logic Puzzle Forums Need Some Logic Here, I'm Stuck
 User Name Remember Me? Password
 FAQ Members List Calendar Search Today's Posts Mark Forums Read

 Thread Tools Display Modes
#1
05-29-2013, 03:45 PM
 BillsBayou Member Join Date: Mar 2013 Location: New Orleans Posts: 77
Need Some Logic Here, I'm Stuck

I should have known this would take a while. Average time was well over 2000 seconds. I'm looking for the next logical step, not a "What If".
Logic-Facilities.gif

Clues 2, 6, 7, 8 are all scratch-offs.

I cannot find any additional groups which exclude each other. I cannot find any groups that exclude everything else.

I have exhausted limiting OR statements. For example, in clue 4, we can place an X at "2019 and Bale-Hahn". From that point, we see that Dr. Morgan cannot be Lectra 4C, Tevatron LHC, 2016, or 2017. Similar OR statements can be found in clues 3, 5, 10.

I'm really stuck with this one. Anyone see the next logical step?

Last edited by BillsBayou; 05-29-2013 at 04:03 PM.
#2
05-29-2013, 03:54 PM
 BillsBayou Member Join Date: Mar 2013 Location: New Orleans Posts: 77

Here's the puzzle with everything cleared out, if you want to try it from the beginning.

Logic-Facilities2.gif
#3
05-30-2013, 03:23 AM
 zenobia43 Senior Member Join Date: Mar 2012 Posts: 175

From clues 1 and 9 we know that Oslo is before Zynga, and Ewing is before Bale-Hahn.

We also know that Zynga is Ewing.

So Oslo is before Bale-Hahn, and Oslo cannot be Bale-Hahn.

Now Oslo can only be Lectra or Tevatron.

From the grid, we see that Morgan can only be Bale-Hahn or Egert. Therefore, Morgan cannot be Oslo.

That sets up a "2 for 2" in the DC category box (where the researchers and locations intersect).

Dublin and Oslo can only be Salinas or Underwood. So we can place five Xs in the Athens, Madrid, and Stockholm rows. Now we're rolling.

Those five Xs load up the right half of clue 10 with extra Xs. The intersection of Athens and Salinas now tells us that Salinas can never be Madrid or Stockholm and Athens can never be Underwood.

Therefore the left side of clue 10 can never be Madrid or Stockholm or Underwood.

Since Egert can no longer be Madrid, Madrid must be Zynga and Ewing.

Everything falls into place after that.

If I didn't make a mistake, the solution is:

2016 - Tevatron - Chang - Stockholm
2017 - Lectra - Salinas - Oslo
2018 - Zynga - Ewing - Madrid
2019 - Egert - Morgan - Athens
2020 - Bale-Hahn - Underwood - Dublin
#4
05-30-2013, 02:10 PM
 BillsBayou Member Join Date: Mar 2013 Location: New Orleans Posts: 77

Daisy chain of relationships! Sheesh. I missed that one. I worked it from that alone. Thanks. Pure logic was what I was looking for.

I was afraid there was yet another technique to learn with this one.

84,216 seconds to solve the puzzle. Well, that will screw with the odds on that one.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Logic-Puzzles.org Discussion     Questions About Logic-Puzzles.org     Comments, Bugs and Feature Requests Other Logic Puzles     Logic Puzzles and Brain Benders Puzzle Baron's Logic Puzzles - The Book!

All times are GMT. The time now is 11:45 AM.

 Contact Us - Logic Puzzles - Archive - Top