Logical Thinking
Mind's Eye Geometry
Curious and interesting puzzles to amuse the visual imagination
0 906212 98 7 Ivan Moscovich
Each of the diagrams in this extensive collection poses an ingenious geometrical puzzle which has to be solved simply by looking, thinking and imagining. For instance, what would you see if you look further into that hollow cube? There is also a novel way to check if your solution or your ideas about the puzzle are correct. By making a model or a simple cut-out from the back of the book, you will be able to place it on the page and convince yourself or others that you are right! A most intriguing collection of puzzling notions.
£2.95
Who Tells the Truth?
A collection of logical puzzles to make you think
0 906212 77 4 Adam Case
All the characters in these puzzles make clear statements about themselves and others, but it is not clear whether or not they are telling the truth. Anyone could be lying. As always, a good logical puzzle is one which it is possible to unravel by thinking logically. The problem is to decide which person to believe. Altogether there are 85 original puzzles in this book ranging in standard from fairly easy to quite demanding. There are also some curious paradoxical pictures which raise questions which are rather hard either to answer or to ignore.
£1.95
Pentominoes
0 906212 57 X Jon Millington
If you take five squares of the same size and join them edge to edge, the resulting shape is called a Pentomino. There are 12 different pentominoes and the number of patterns you can make with them is very large. This book shows some of the possibilities, poses some problems and suggests fruitful lines of investigation. Complete with sets of pentominoes in two colours to cut out and an envelope in which to keep them.
£3.50
Tangrams
0 906212 56 1 Jon Millington
This colourful book deals in a fresh way with a puzzle which is very old indeed, probably of Chinese origin. A square is cut into 7 pieces and with them you have to construct a large variety of different images and patterns. Complete with sets of tangrams in two colours to cut out, and an envelope in which to keep them.
£3.50
