The puzzle shown in Figure 5.1 on the next page consists of three pieces and was originally published by W. A. Elliott Company, 212 Adelaide St. W., Toronto, Canada M5H 1W7.

If we place the pieces together as shown at the top, we see 15 leprechauns. However, if we commute pieces A and B as shown at the bottom, we count 14 leprechauns!

Clearly, from Figure 5.1 we see 

AB ≠ BA

Can you explain where the vanishing leprechaun went?

Figure 5.1

Transcribed Image Text:

A THE WHICH ONE YAKISHES WHERE DOES BE 60: WHEN HE COMES RICH, WERE HAS HE BEEN? WILL ANYONE EVER SOLFY THUS WESTERY? GP PENTRALLER UNGGEST BURSUL PY A-T-JAMAIS PEPSONNE 2 POUR NEFOTOGE CETTE ERIGE A B B THE VAMISHING EPDECHAUN VAMISHING LEPRECHAUN LAVA SPANTI 20PERT- EN ALLERY GANGL EST DERETA, A-EXPERT- JAMKS PERSONNE GET PUFRA RESORE CETTE ENNE? WHICH ONE VANISHES? WHERE DOES HE GO? WHEN HE COMES BACK, WHERE HAS NE BEEN? WILL ANYONE EVER SOLVE THIS MYSTERY?