Answers 329sliding the pieces F and C upwards to the left, and bringing down the little
piece D from one corner to the other.
[Lindgren has found a way to accomplish this result in as few as five pieces.
See his Geometric Dissections, p. 9.-M. G.]
- CHANGING THE SUIT
The diagram shows how the spade may be cut into three parts that will fit
together and form a heart.
1
352. PROBLEM OF THE EXTRA CELL
The fallacy lies in the fact that the oblique edges of the pieces do not coin-
cide in direction. If you carefully layout the pieces so that the outer edges
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