Forum: Questions About Logic-Puzzles.org
03-23-2018, 05:11 PM
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Replies: 2
Views: 1,015
Your grid shows that SBC = Tuesday.
Now...
Your grid shows that SBC = Tuesday.
Now restate clue 7 by substituting Tuesday for SBC and reverse the inequality so it is easier to compare to clue 1.
7. The show that aired on Tuesday had...
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Forum: Questions About Logic-Puzzles.org
12-29-2017, 04:24 AM
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Replies: 2
Views: 2,039
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Forum: Puzzle Baron's Logic Puzzles - The Book!
12-26-2017, 04:09 AM
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Replies: 32
Views: 124,698
According to this post,...
According to this post, http://www.logic-puzzles.org/forum/showthread.php?p=4089#post4089, there is probably a missing negative relation. Using the suggested modification will lead to a solution.
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Forum: Questions About Logic-Puzzles.org
07-06-2017, 08:07 AM
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Replies: 4
Views: 3,259
If you have never solved a logic puzzle before,...
If you have never solved a logic puzzle before, start with the 3x4 Easy puzzles. With only three categories and only four options in each category, the logic chains are relatively short - and after a...
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Forum: Comments, Bugs and Feature Requests
06-10-2017, 03:24 PM
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Replies: 2
Views: 2,256
This one is tricky because you have to do a...
This one is tricky because you have to do a substitution in the third clue before the hint makes sense.
Before the substitution:
Clue 3: helmet -> yellow
Clue 10 : orange -> flower
...
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Forum: Logic Puzzles and Brain Benders
05-04-2017, 08:13 AM
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Replies: 1
Views: 1,702
I put the position category on the left, and I...
I put the position category on the left, and I put the distance as the last category on the right. I got the following solution. I'm not sure if it is unique, but it seems to satisfy the clues - as...
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Forum: Questions About Logic-Puzzles.org
04-04-2017, 05:12 PM
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Replies: 10
Views: 6,669
A trivial 3x3 puzzle
Here is a trivial 3x3 puzzle built using the technique described in the previous posts.
I started with the identity matrix in each of the upper 3x3 sub-grids, and labeled the columns the way I...
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Forum: Questions About Logic-Puzzles.org
04-04-2017, 09:05 AM
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Replies: 10
Views: 6,669
Puzzle construction
Yes, and since you can permute the columns when you have found a suitable constraint set (the clues), then always start with the identity matrix (true relationships in a straight line from upper left...
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Forum: Questions About Logic-Puzzles.org
04-03-2017, 08:49 AM
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Replies: 10
Views: 6,669
More puzzle construction
Terri - As in the previous post, one could start with a pleasing set of clues (the constraint set) and test for a unique solution. As uigrad mentioned, if the solution is not unique, one could...
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Forum: Questions About Logic-Puzzles.org
04-02-2017, 08:52 AM
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Replies: 10
Views: 6,669
Puzzle construction
What a great question !
I'll give you my 2 cents worth. I'm sure someone will be kind enough to correct my math (logic) if I didn't get it right. It would be so great if one of our logic puzzle...
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Forum: Comments, Bugs and Feature Requests
03-23-2017, 06:00 AM
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Replies: 2
Views: 1,444
Suppose you had this clue:
Of the essay...
Suppose you had this clue:
Of the essay written by Dr. Callahan and the one that was 10 pages long, one was about volcanos, and the other was in Chapter 4.
And suppose from your grid you...
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Forum: Questions About Logic-Puzzles.org
03-07-2017, 07:32 AM
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Replies: 16
Views: 7,947
There is a great tutorial here:...
There is a great tutorial here: http://logic-puzzles.org/how-to-solve-a-logic-puzzle.php, and it covers most of the techniques that you will need for the puzzles on this site.
Many have asked how...
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Forum: Logic Puzzles and Brain Benders
02-22-2017, 03:30 AM
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Replies: 6
Views: 6,924
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Forum: Puzzle Baron's Logic Puzzles - The Book!
01-28-2017, 12:37 PM
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Replies: 15
Views: 13,614
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Forum: Puzzle Baron's Logic Puzzles - The Book!
01-26-2017, 07:39 AM
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Replies: 15
Views: 13,614
Sorry - I was one row off. Tuesday is the row...
Sorry - I was one row off. Tuesday is the row that is common to earthquakes and magnetism. So that is the row that will always be occupied by either earthquakes or magnetism, forcing the remaining...
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Forum: Puzzle Baron's Logic Puzzles - The Book!
01-25-2017, 03:48 PM
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Replies: 15
Views: 13,614
For the Music Store puzzle:
The positive...
For the Music Store puzzle:
The positive relation from clue 6 can be substituted into clue 3 to deduce that Ricardo and $13.99 can only be Third or Fifth.
That will force First to be $9.99.
...
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Forum: Puzzle Baron's Logic Puzzles - The Book!
01-25-2017, 03:12 PM
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Replies: 15
Views: 13,614
For the Science Fair puzzle:
Clue 3 says...
For the Science Fair puzzle:
Clue 3 says that Michigan and earthquake can only be Tuesday or Wednesday. So you can eliminate (X out) Monday, Thursday, and Friday for those options.
That will...
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Forum: Puzzle Baron's Logic Puzzles - The Book!
01-24-2017, 06:20 AM
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Replies: 15
Views: 13,614
Step 7 illustrates the transposition of false...
Step 7 illustrates the transposition of false relationships.
Step 8 introduces the positive relationship, pink == $40 out of thin air just to set up the next illustration which shows how to...
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Forum: Questions About Logic-Puzzles.org
01-08-2017, 06:42 AM
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Replies: 2
Views: 8,849
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Forum: Logic Puzzles and Brain Benders
12-06-2016, 05:06 AM
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Replies: 1
Views: 8,930
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Forum: Logic Puzzles and Brain Benders
11-30-2016, 09:36 AM
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Replies: 12
Views: 11,710
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Forum: Logic Puzzles and Brain Benders
11-30-2016, 06:43 AM
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Replies: 12
Views: 11,710
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Forum: Logic Puzzles and Brain Benders
11-29-2016, 06:54 PM
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Replies: 12
Views: 11,710
Assuming the constraints mentioned earlier, I...
Assuming the constraints mentioned earlier, I removed the orange assignments except for Mary and Jordan and tried to find an assignment for each color separately rather than trying to complete the...
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Forum: Comments, Bugs and Feature Requests
11-26-2016, 02:05 PM
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Replies: 1
Views: 4,213
We don't have much control over the points...
We don't have much control over the points awarded unless we set a new record or place way to the right of the normal curve.
Penalties add to the completion time which reduces the score, so if...
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Forum: Comments, Bugs and Feature Requests
11-26-2016, 12:23 PM
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Replies: 2
Views: 5,566
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