How can a 4 piece puzzle be so difficult??. All you have to do is insert them into the frame… It is a Stewart Coffin design (#217) originally called “Four Fit” but renamed by Stewart after Martin Gardner’s week long efforts to solve it were in vain.
Martin Gardner (1914-2010) is considered the Father of Recreational...
Have someone mentally think of any letter of the alphabet; A-Z. By having him simply sort through the 7 wood cards and selecting only those cards that contain the chosen letter (turning them upside down so that you have no clues), you will quickly be able to tell them the exact letter they were thinking of.
This is an idea...
Want to amaze your friends with your ability to read their mind? This will do it! There are 6 wood cards, each laser engraved with 59 or 60 different numbers. The numbers 1 through 60 are on the cards, with most repeated a number of times. Simply ask a friend to select a number but not to tell you. Then ask him to look at each card...
This hand-crafted wooden box with eight square pegs will drive you crazy!
The object is to arrange the pegs (numbers 1-8) such that no consecutive number touches on any connecting line. For example number 1 cannot connect with number 2; number 2 cannot connect with 3 or 1; number 5 cannot connect with 4 or 6; etc. It's an intriguing...