Professor Hoffmann's Best Math and Logic Puzzles

by Louis Hoffmann and Angelo John Lewis Hoffmann

Book Overview

You invite a gentleman to stand in the middle of the room. Taking a piece of chalk, you undertake to draw round him a circle which he cannot jump out of. How is it to be done?
This riddle, "The Charmed Circle," is but one of dozens of antique treats from a classic collection of brainteasers. Professor Hoffmann published his great treasury of old and new puzzles in 1893. Since then, puzzle aficionados have reveled in the Victorian charm of the professor's...

• Format: Paperback
• Language: English
• ISBN: 0486454746
• ISBN13: 9780486454740
• Release Date: June 2007
• Publisher: Dover Publications
• Length: 160 Pages
• Weight: 0.40 lbs.
• Dimensions: 0.3" x 5.4" x 8.3"
• Age Range: 12 years and up
• Grade Range: Grade 7 and higher