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 Polyomino Puzzle (Posted on 2005-11-22)
The squares of the six polyominoes depicted below are either filled or empty. What logic was used to determine whether a square filled?
```+--+--+--+--+--+              +--+--+
|##|  |##|  |##|              |##|##|
+--+--+--+--+--+  +--+--+     +--+--+
|  |  |  |  |     |##|##|     |##|##|
+--+--+--+--+  +--+--+--+--+  +--+--+
|##|  |##|  |##|  |  |##|  |  |  |
+--+--+--+  +--+--+--+--+  +--+--+
|  |        |##|  |##|     |##|
+--+        +--+--+--+--+  +--+
|##|  |##|
+--+--+  +--+--+--+
|  |##|     |##|
+--+--+  +--+--+--+--+  +--+
|##|##|  |##|  |  |  |
+--+--+  +--+--+--+--+     +--+
|##|##|        |##|##|     |##|
+--+--+--+--+  +--+--+  +--+--+--+
|  |  |  |  |##|##|  |  |  |  |
+--+--+--+  +--+--+  +--+--+--+
|##|  |  |           |##|  |##|
+--+--+--+           +--+--+--+
```

 See The Solution Submitted by Brian Smith Rating: 3.7500 (4 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
 Observations | Comment 9 of 21 |

Labelling the six polyominoes from left to right, top row then bottom row

A     B     C

D     E     F

I notice that F fits inside A, with pattern intact.  C, upside down, fits with E, pattern intact.  D, when inverted, is like E, except one square is relocated, and the patterns in the squares adjacent to the relocated squares have changed accordingly.

Apparently, some rule is being applied, but I'm not seeing it clearly yet.

 Posted by Mindy Rodriguez on 2005-11-23 23:46:33

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