Math focused Puzzles

Fantastic and unique puzzle based on a 1911 design. The object is to get each of the 16 columns of numbers to add to 40 at...

Fantastic design 16 times more difficult than Safecracker 40.   The object is to get each of the 16 columns of numbers to add...

Want to amaze your friends with your ability to read their mind??  This will do it!  There are 6 wood cards, each laser...

Want to amaze your friends with your ability to read their mind??  This will do it!  There are 6 wood cards, each laser...

An astounding math magic trick that leaves people with their chin on the floor:)"How did you do that!" is the phrase I hear...

In 1927 Royal V. Heath marketed a magic effect called “The Di-Ciphering Trick” based on a math trick developed by Edmund...