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 Semi-Minimalist Painting (Posted on 2006-03-13)
A semi-minimalist painter created a work which consisted of a 6 x 6 array of small colored squares. Each small square contained just one color.

At the art gallery, six girl students were examining the painting. Each girl chose to report on exactly one horizontal row of small squares, by assigning a different number to each color in that row. The six row patterns, in the original order, were

```121341
112213
123221
121222
122113
122134
```
The girls did not consult one another, so a given digit in one row does not necessarily represent the same color as the same digit in a different row.

Another group of six girls did the same process, but this time for the columns, rather than the rows. The column patterns they came up with look like this (but the array below shows the columns in no particular order):

```1  1  1  1  1  1
2  1  2  2  1  2
3  2  3  2  2  2
4  3  2  2  3  1
3  2  1  2  4  2
2  4  1  3  3  2
```
Remember: the rows in the first table are shown in the correct order, but the columns in the second table are shown randomly. Outside of the particular row, for the first table, or column for the second table, do not expect the same digit-to-color coding scheme.

There were more green squares than any other color. How many squares were painted green?

 See The Solution Submitted by Charlie Rating: 3.2000 (5 votes)

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 Solution | Comment 1 of 10

There were 13 green squares.  Labeling the columns A-F from left to right, the correct order of the columns is CEBFAD.  Filling in the colors (I arbitrarily chose red, blue and yellow as the other three colors), the painting looks like this:

`G R G B Y GR R G G R BB G Y G G BR B R B B BG Y Y G G BG B B G R Y`

I can't really walk through the thought process, but all it took was a slow, methodical approach to deduce which squares had to be the same, which ones had to be different, etc - the trick is to get the columns in the proper order.  I'm assuming this solution is unique, but I'm not sure.  All I'm sure of is that this ordering fits the criteria. :)

 Posted by tomarken on 2006-03-13 16:14:45

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