On this Logic puzzle tutorial page we have examples and also links to free printable grid logic puzzles.
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WE ARE PLEASED TO ANNOUNCE OUR FIRST EBOOK , A COMPILATION OF 'OUR BEST LOGIC PUZZLES' JAMPACKED WITH OVER 80 LOGIC PUZZLES FROM OUR WEBPAGES.
OUR BEST LOGIC PUZZLES (COMPILATION)
PICK UP THE EBOOK VERSION HERE FOR ONLY $4.99.
OR YOU CAN OBTAIN THE PAPERBACK COPY :
HERE FOR $8.99 OR AT AMAZON.COM
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By far the most popular of logic puzzles are the grid logic puzzles, though there are many other
varieties including word logic, maze logic, gridless, syllogisms, and the like.
What most of the 'logic' puzzles have in common is that the game involves some form of
deductive reasoning., or that which we start with the general ( a set of clues) and move to the particular
( a logical conclusion) just like a real doggone sleuth!!
Another form of logic puzzle, popular among puzzle enthusiasts and available in magazines dedicated to the subject, is a format in which the setup to a scenario is given, as well as the object (for example, determine who brought what pet at a pet store , and on what day each pet was bought), some specific clues are given ("neither Mary nor Ray purchased the German Shepherd"), and then the reader fills out a matrix with the clues and attempts to deduce the solution.
Common logic puzzle magazines are derivatives of the logic grid puzzle called "table puzzles" that are deduced in the same manner , but lack the grid either because a grid would be too large, or because some other visual aid is provided. For example, a map of a town might be present in lieu of a grid in a puzzle about the location of different shops.
In this section we will explore some grid puzzle samples in a stepbystep tutorial.
(NOTE: All puzzles in the example section are fully interactive , meaning
1. Using the grid charts below attached to each game to plot your guesses as follows :
2. Click on each grid square to alternatively :
3. Use the 'RESET' button to clear the entire grid chart and start a game over.
4. Click on the box labeled: SOLUTION Step_by_step to open the tutorial guide for the
selected puzzle.(Located beneath the reset button).
Puzzle 1: AT THE PET SHOP
Last week four friends ( one was Susan) went to the pet shop looking for new pets.
Each friend chose a different pet (one was a cat ).
From the clues provided can you tell which friend bought which pet?
SOLUTION: STEP_BY_STEP(click to show / hide)

CLUES:Nobody chose a pet which started with the same first letter as their name. Bill already has a dog. Jen is afraid of snakes. Roger did not choose the snake. Neither Jen nor Susan like monkeys. Jen did not choose the cat . 
We believe the popularity of these types of puzzles is that the logic grid helps you keep track of the facts,
for me the grid itself is pleasing to my deductive mind, allowing me to keep track of the guesses,
the deductions from the given clues.
We can increase the difficulty by simply adding another variable or logic element to the mix.
For the next example we add the additional information to try to deduce not only what pet was purchased
by which person, but now you get to sleuth out the names of the chosen pets, as well..
Consider the next example.
Puzzle 2: AT THE PET SHOP AGAIN
Last week four friends ( one of whom was named bill ) went to the pet shop looking for new pets. Each friend chose a different pet (one was a monkey .) Each friend gave their pets a different name(one was named Spike ).
From the clues provided can you tell which friend bought which pet and the name they gave each of their pets?

CLUES: 1.] Roger's pet was not Wobbles .Bill already has a dog. [ 2.] The girl who named her pet Spike is afraid of snakes. [ 3.] Jan did not name her pet Toto, who is not a dog. [ 4.] Bill did not purchase a cat, or a snake. [ 5.] No pets name begins with the same letter as its species. [ 6.] The cat was named either Spike or Wobbles. [7.] Jan likes the name Wobbles and gave that name to the pet snake she purchased. 
LOGIC GRID (with math)
My favorite variations are the logic grid with math, or using math.
Working with numbers not only gives your brain great exercise but it increases your brain
power as well ( see our Brain teaser section to find out more information)
Here is another great logic puzzle grid example
Puzzzle 3 :ArrivalsDepartures

Four travelers ( one of whom was Adam ) arrived at JFK all arriving at different times (one plane arrived at 11 am ) and also each departed at different times ( one plane left at 1:15pm ). From the clues provided can you tell which traveler arrived at JFK at what time and also what their departure times were? CLUES: The person who arrived earliest also left latest. Max arrived sometime after Kathy, but before Susan. Susan departed before Kathy, who departed last. Adam's arrival time was exactly 2 hours before his departure time. Max left exactly 15 min prior to Adam. 
Again we will try to vary the difficulty of the puzzle by adding yet another element( The variation
in this puzzle will be adding a fifth person, ( up to this point all of our puzzles had been focusing on
simpler scenarios with only four persons).
Hope this logic puzzle grid will have a little more degree of difficulty for you.
Puzzle 4: Discovery
Five Scientists including Bob, have been credited with discovering five new planets ( one was named Argo )
at the Observatory last week (each on a different day including  Monday).If each scientist discovered his own
planet and each on separate days, from the clues provided below can you determine which scientist discovered
which planet and on what day?

CLUES: Carl and Igor discovered their planets , Sargo and Bargo (in some order), on consecutive days, but not starting Monday. Bob did not discover Fargo, which was discovered sometime later in the week, after Bob's discovery. Argo was discovered before Bargo, but after Margo. Edie discovered her planet the very next day after Bob's discovery, she did not find Margo. Sargo was discovered last. Carl discovered his planet 3 days after Bob. The day of Max's discovery, Margo and Argo had already been found. Fargo was discovered before Both Bargo and Sargo. Max was available for work only one day last week, Wednesday. 
WE ARE PLEASED TO ANNOUNCE OUR FIRST EBOOK , A COMPILATION OF 'OUR BEST LOGIC PUZZLES' JAMPACKED WITH OVER 80 LOGIC PUZZLES FROM OUR WEBPAGES.
OUR BEST LOGIC PUZZLES (COMPILATION)
PICK UP THE EBOOK VERSION HERE FOR ONLY $4.99.
OR YOU CAN OBTAIN THE PAPERBACK COPY : HERE FOR $8.99 OR AT AMAZON.COM
 See more at: http://sbiapps.sitesell.com/sitebuilder/blockbuilder/preview/20005507.xml#sthash.QenVm26i.dpuf