Just got this book with those grid logic puzzles, I did them a long time ago and enjoyed them, but I can't remember how now… and there's no instructions in the book! Can anyone give me a general how-to rundown? Thanks!
The grid is provided with a word-logic puzzle to help you keep track of information you glean from the clues. I assume that the kind of puzzles you're doing are something of this flavor:
Amy, Beth, Carol, Deedee and Evangeline live on the same street. Amy lives next door to Evangeline. Deedee lives at #32. …. … etc. What house does each woman live in?
Your grid for this puzzle would have the ladies names down one side (or along the top) and the house numbers opposite. To use the grid, mark each definite answer you know (for instance, that Deedee is in #32) with a circle, and X out all the other possibilities. None of the other ladies can live in #32 since Deedee does, and Deedee can't live anywhere else. Your grid might look something like this for this stage:
..30 | 31 | 32 | 33 | 34
a .. | … |. .X.| .. |
_________________
b .. |… |. X. |.. |
_________________
c .. |… |. X. |.. |
_________________
d X | X | O. | X | X
__________________
e .. |… |. X. | .. |
(apologies for lousy formatting – I don't seem to be able to make a nice neat table here. Just ignore the periods.)
As you learn more facts and add them up (like Amy and Evangeline living next door to each other; since you now know neither of them lives in #32, they must live in 33 & 34 or 30 & 31, if one of them lives in one set of those houses then by deduction the other one doesn't live in the other set) you cross off the things you know for sure. Make sense?
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X off the ones that are obviously not right then – well use logic to finish it.
References :
There are also logic puzzles that are completely non-verbal in nature. Some popular forms include Sudoku and Unisol, which involves using deduction to correctly place numbers in a grid; the nonogram, also called "Paint by Numbers", which involves using deduction to correctly fill in a grid with black-and-white squares to produce a picture; and logic mazes, which involve using deduction to figure out the rules of a maze.
References :
sorry i don't know … realy …
References :
The grid is provided with a word-logic puzzle to help you keep track of information you glean from the clues. I assume that the kind of puzzles you're doing are something of this flavor:
Amy, Beth, Carol, Deedee and Evangeline live on the same street. Amy lives next door to Evangeline. Deedee lives at #32. …. … etc. What house does each woman live in?
Your grid for this puzzle would have the ladies names down one side (or along the top) and the house numbers opposite. To use the grid, mark each definite answer you know (for instance, that Deedee is in #32) with a circle, and X out all the other possibilities. None of the other ladies can live in #32 since Deedee does, and Deedee can't live anywhere else. Your grid might look something like this for this stage:
..30 | 31 | 32 | 33 | 34
a .. | … |. .X.| .. |
_________________
b .. |… |. X. |.. |
_________________
c .. |… |. X. |.. |
_________________
d X | X | O. | X | X
__________________
e .. |… |. X. | .. |
(apologies for lousy formatting – I don't seem to be able to make a nice neat table here. Just ignore the periods.)
As you learn more facts and add them up (like Amy and Evangeline living next door to each other; since you now know neither of them lives in #32, they must live in 33 & 34 or 30 & 31, if one of them lives in one set of those houses then by deduction the other one doesn't live in the other set) you cross off the things you know for sure. Make sense?
References :
lots of logic puzzles in my past, oh yes.
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