The T edition puzzle dates back to New York in 1903, when it was invented for a promotional campaign for White Rose Ceylon Tea. The four pieces of cardboard were intended to be arranged as the letter T − a play on the word tea. Then in the 1970s the remarkable Japanese scientist Nob Yoshigahara redesigned the elements to enable you to start with the letter T and rearrange it into a host of other shapes.

Using all four elements of the puzzle at all times, the puzzler is challenged to rearrange them in well over 60 ways to produce anything from birds to houses