# Math puzzle

• Jul 22nd 2009, 04:08 PM
Soroban
Math puzzle
Match Puzzle

Move two matches and form exactly four units squares.

$\displaystyle \begin{array}{ccccccccc} & \leftrightarrow && \leftrightarrow && \leftrightarrow \\ \updownarrow && \updownarrow && \updownarrow && \updownarrow\\ & \leftrightarrow && \leftrightarrow && \leftrightarrow && \leftrightarrow \\ &&&& \updownarrow && \updownarrow && \updownarrow \\ &&&&& \leftrightarrow && \leftrightarrow \end{array}$

• Jul 22nd 2009, 06:49 PM
Wilmer
Remove?
You can do it if you REMOVE the two at top right corner.
Are you saying to MOVE two; leaving them in the design somewhere?
• Jul 22nd 2009, 08:02 PM
Soroban
Hello, Wilmer!

Yes, that's exactly what I mean . . . move two matches.
. . Relocate them in the diagram.

• Jul 22nd 2009, 08:17 PM
Wilmer
OK...
move top middle horizontal match and first bottom horizontal match,
use them to form a square (bottom 2nd column).
• Jul 23rd 2009, 07:19 AM
Soroban
You got it, Wilmer . . . good job!

Spoiler:

. . . . $\displaystyle \begin{array}{ccccccccc} & \leftrightarrow && {\color{green}\leftrightarrow} && \leftrightarrow \\ \updownarrow && \updownarrow && \updownarrow && \updownarrow\\ & \leftrightarrow && \leftrightarrow && \leftrightarrow && \leftrightarrow \\ && {\color{red}\updownarrow} && \updownarrow && \updownarrow && \updownarrow \\ &&& {\color{red}\leftrightarrow} &&{\color{green}\leftrightarrow} && \leftrightarrow \end{array}$